.. This work is licensed under a Creative Commons Attribution 4.0 International License. .. http://creativecommons.org/licenses/by/4.0 APEX Installation Guide *********************** .. contents:: :depth: 3 Requirements ^^^^^^^^^^^^ .. container:: sectionbody .. container:: paragraph APEX is 100% written in Java and runs on any platform that supports a JVM, e.g. Windows, Unix, Cygwin. Some APEX applications (such as the monitoring application) come as web archives, they do require a war-capable web server installed. Installation Requirements ------------------------- .. container:: ulist - Downloaded distribution: JAVA runtime environment (JRE, Java 8 or later, APEX is tested with the Oracle Java) - Building from source: JAVA development kit (JDK, Java 8 or later, APEX is tested with the Oracle Java) - A web archive capable webserver, for instance for the monitoring application .. container:: ulist - for instance `Apache Tomcat `__ - Sufficient rights to install APEX on the system - Installation tools depending on the installation method used: .. container:: ulist - ZIP to extract from a ZIP distribution .. container:: ulist - Windows for instance `7Zip `__ - TAR and GZ to extract from that TAR.GZ distribution .. container:: ulist - Windows for instance `7Zip `__ - RPM to install from the RPM distribution .. container:: ulist - Install: ``sudo apt-get install rpm`` - DPKG to install from the DEB distribution .. container:: ulist - Install: ``sudo apt-get install dpkg`` Feature Requirements -------------------- .. container:: paragraph APEX supports a number of features that require extra software being installed. .. container:: ulist - `Apache Kafka `__ to connect APEX to a Kafka message bus - `Hazelcast `__ to use distributed hash maps for context - `Infinispan `__ for distributed context and persistence - `Docker `__ to run APEX inside a Docker container Build (Install from Source) Requirements ---------------------------------------- .. container:: paragraph Installation from source requires a few development tools .. container:: ulist - GIT to retrieve the source code - Java SDK, Java version 8 or later - Apache Maven 3 (the APEX build environment) Get the APEX Source Code ^^^^^^^^^^^^^^^^^^^^^^^^ .. container:: sectionbody .. container:: paragraph The first APEX source code was hosted on Github in January 2018. By the end of 2018, APEX was added as a project in the ONAP Policy Framework, released later in the ONAP Casablanca release. .. container:: paragraph The APEX source code is hosted in ONAP as project APEX. The current stable version is in the master branch. Simply clone the master branch from ONAP using HTTPS. .. container:: listingblock .. container:: content .. code:: bash :number-lines: git clone https://gerrit.onap.org/r/policy/apex-pdp Build APEX ^^^^^^^^^^ .. container:: sectionbody .. container:: paragraph The examples in this document assume that the APEX source repositories are cloned to: .. container:: ulist - Unix, Cygwin: ``/usr/local/src/apex-pdp`` - Windows: ``C:\dev\apex-pdp`` - Cygwin: ``/cygdrive/c/dev/apex-pdp`` .. important:: A Build requires ONAP Nexus APEX has a dependency to ONAP parent projects. You might need to adjust your Maven M2 settings. The most current settings can be found in the ONAP oparent repo: `Settings `__. .. important:: A Build needs Space Building APEX requires approximately 2-3 GB of hard disc space, 1 GB for the actual build with full distribution and 1-2 GB for the downloaded dependencies .. important:: A Build requires Internet (for first build) During the build, several (a lot) of Maven dependencies will be downloaded and stored in the configured local Maven repository. The first standard build (and any first specific build) requires Internet access to download those dependencies. .. important:: Building RPM distributions RPM images are only build if the ``rpm`` package is installed (Unix). To install ``rpm`` run ``sudo apt-get install rpm``, then build APEX. .. container:: paragraph Use Maven to for a standard build without any tests. +-------------------------------------------------------+--------------------------------------------------------+ | Unix, Cygwin | Windows | +=======================================================+========================================================+ | .. container:: | .. container:: | | | | | .. container:: content | .. container:: content | | | | | .. code:: bash | .. code:: bash | | :number-lines: | :number-lines: | | | | | >c: | # cd /usr/local/src/apex-pdp | | >cd \dev\apex | # mvn clean install -DskipTest | | >mvn clean install -DskipTests | | +-------------------------------------------------------+--------------------------------------------------------+ .. container:: paragraph The build takes 2-3 minutes on a standard development laptop. It should run through without errors, but with a lot of messages from the build process. .. container:: paragraph When Maven is finished with the build, the final screen should look similar to this (omitting some ``success`` lines): .. container:: listingblock .. container:: content .. code:: bash :number-lines: [INFO] tools .............................................. SUCCESS [ 0.248 s] [INFO] tools-common ....................................... SUCCESS [ 0.784 s] [INFO] simple-wsclient .................................... SUCCESS [ 3.303 s] [INFO] model-generator .................................... SUCCESS [ 0.644 s] [INFO] packages ........................................... SUCCESS [ 0.336 s] [INFO] apex-pdp-package-full .............................. SUCCESS [01:10 min] [INFO] Policy APEX PDP - Docker build 2.0.0-SNAPSHOT ...... SUCCESS [ 10.307 s] [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 03:43 min [INFO] Finished at: 2018-09-03T11:56:01+01:00 [INFO] ------------------------------------------------------------------------ .. container:: paragraph The build will have created all artifacts required for an APEX installation. The following example show how to change to the target directory and how it should look like. +----------------------------------------------------------------------------------------------------------------------------+ | Unix, Cygwin | +============================================================================================================================+ | .. container:: | | | | .. container:: listingblock | | | | .. container:: content | | | | .. code:: bash | | :number-lines: | | | | -rwxrwx---+ 1 esvevan Domain Users 772 Sep 3 11:55 apex-pdp-package-full_2.0.0~SNAPSHOT_all.changes* | | -rwxrwx---+ 1 esvevan Domain Users 146328082 Sep 3 11:55 apex-pdp-package-full-2.0.0-SNAPSHOT.deb* | | -rwxrwx---+ 1 esvevan Domain Users 15633 Sep 3 11:54 apex-pdp-package-full-2.0.0-SNAPSHOT.jar* | | -rwxrwx---+ 1 esvevan Domain Users 146296819 Sep 3 11:55 apex-pdp-package-full-2.0.0-SNAPSHOT-tarball.tar.gz* | | drwxrwx---+ 1 esvevan Domain Users 0 Sep 3 11:54 archive-tmp/ | | -rwxrwx---+ 1 esvevan Domain Users 89 Sep 3 11:54 checkstyle-cachefile* | | -rwxrwx---+ 1 esvevan Domain Users 10621 Sep 3 11:54 checkstyle-checker.xml* | | -rwxrwx---+ 1 esvevan Domain Users 584 Sep 3 11:54 checkstyle-header.txt* | | -rwxrwx---+ 1 esvevan Domain Users 86 Sep 3 11:54 checkstyle-result.xml* | | drwxrwx---+ 1 esvevan Domain Users 0 Sep 3 11:54 classes/ | | drwxrwx---+ 1 esvevan Domain Users 0 Sep 3 11:54 dependency-maven-plugin-markers/ | | drwxrwx---+ 1 esvevan Domain Users 0 Sep 3 11:54 etc/ | | drwxrwx---+ 1 esvevan Domain Users 0 Sep 3 11:54 examples/ | | drwxrwx---+ 1 esvevan Domain Users 0 Sep 3 11:55 install_hierarchy/ | | drwxrwx---+ 1 esvevan Domain Users 0 Sep 3 11:54 maven-archiver/ | +----------------------------------------------------------------------------------------------------------------------------+ +--------------------------------------------------------------------------------------------------------+ | Windows | +========================================================================================================+ | .. container:: | | | | .. container:: listingblock | | | | .. container:: content | | | | .. code:: bash | | :number-lines: | | | | 03/09/2018 11:55 . | | 03/09/2018 11:55 .. | | 03/09/2018 11:55 146,296,819 apex-pdp-package-full-2.0.0-SNAPSHOT-tarball.tar.gz | | 03/09/2018 11:55 146,328,082 apex-pdp-package-full-2.0.0-SNAPSHOT.deb | | 03/09/2018 11:54 15,633 apex-pdp-package-full-2.0.0-SNAPSHOT.jar | | 03/09/2018 11:55 772 apex-pdp-package-full_2.0.0~SNAPSHOT_all.changes | | 03/09/2018 11:54 archive-tmp | | 03/09/2018 11:54 89 checkstyle-cachefile | | 03/09/2018 11:54 10,621 checkstyle-checker.xml | | 03/09/2018 11:54 584 checkstyle-header.txt | | 03/09/2018 11:54 86 checkstyle-result.xml | | 03/09/2018 11:54 classes | | 03/09/2018 11:54 dependency-maven-plugin-markers | | 03/09/2018 11:54 etc | | 03/09/2018 11:54 examples | | 03/09/2018 11:55 install_hierarchy | | 03/09/2018 11:54 maven-archiver | | 8 File(s) 292,652,686 bytes | | 9 Dir(s) 14,138,720,256 bytes free | +--------------------------------------------------------------------------------------------------------+ Install APEX ^^^^^^^^^^^^ .. container:: paragraph APEX can be installed in different ways: .. container:: ulist - Unix: automatically using ``rpm`` or ``dpkg`` from ``.rpm`` or ``.deb`` archive - Windows, Unix, Cygwin: manually from a ``.tar.gz`` archive - Windows, Unix, Cygwin: build from source using Maven, then install manually Install with RPM and DPKG ------------------------- .. container:: paragraph The install distributions of APEX automatically install the system. The installation directory is ``/opt/app/policy/apex-pdp``. Log files are located in ``/var/log/onap/policy/apex-pdp``. The latest APEX version will be available as ``/opt/app/policy/apex-pdp/apex-pdp``. .. container:: paragraph For the installation, a new user ``apexuser`` and a new group ``apexuser`` will be created. This user owns the installation directories and the log file location. The user is also used by the standard APEX start scripts to run APEX with this user’s permissions. +-----------------------------------------------------------------------+ | RPM Installation | +=======================================================================+ | .. container:: | | | | .. container:: listingblock | | | | .. container:: content | | | | .. code:: bash | | :number-lines: | | | | # sudo rpm -i apex-pdp-package-full-2.0.0-SNAPSHOT.rpm | | ********************preinst******************* | | arguments 1 | | ********************************************** | | creating group apexuser . . . | | creating user apexuser . . . | | ********************postinst**************** | | arguments 1 | | *********************************************** | +-----------------------------------------------------------------------+ +--------------------------------------------------------------------------------------+ | DPKG Installation | +======================================================================================+ | .. container:: | | | | .. container:: listingblock | | | | .. container:: content | | | | .. code:: bash | | :number-lines: | | | | # sudo dpkg -i apex-pdp-package-full-2.0.0-SNAPSHOT.deb | | Selecting previously unselected package apex-uservice. | | (Reading database ... 288458 files and directories currently installed.) | | Preparing to unpack apex-pdp-package-full-2.0.0-SNAPSHOT.deb ... | | ********************preinst******************* | | arguments install | | ********************************************** | | creating group apexuser . . . | | creating user apexuser . . . | | Unpacking apex-uservice (2.0.0-SNAPSHOT) ... | | Setting up apex-uservice (2.0.0-SNAPSHOT) ... | | ********************postinst**************** | | arguments configure | | *********************************************** | +--------------------------------------------------------------------------------------+ .. container:: paragraph Once the installation is finished, APEX is fully installed and ready to run. Install Manually from Archive (Unix, Cygwin) -------------------------------------------- .. container:: paragraph Download a ``tar.gz`` archive. Create a directory where APEX should be installed. Extract the ``tar`` archive. The following example shows how to install APEX in ``/opt/apex`` and create a link to ``/opt/apex/apex`` for the most recent installation. .. container:: listingblock .. container:: content .. code:: bash :number-lines: # cd /opt # mkdir apex # cd apex # mkdir apex-full-2.0.0-SNAPSHOT # tar xvfz ~/Downloads/apex-pdp-package-full-2.0.0-SNAPSHOT.tar.gz -C apex-full-2.0.0-SNAPSHOT # ln -s apex apex-pdp-package-full-2.0.0-SNAPSHOT Install Manually from Archive (Windows, 7Zip, GUI) -------------------------------------------------- .. container:: paragraph Download a ``tar.gz`` archive and copy the file into the install folder (in this example ``C:\apex``). Assuming you are using 7Zip, right click on the file and extract the ``tar`` archive. Note: the screenshots might show an older version than you have. .. container:: imageblock .. container:: content |Extract the TAR archive| .. container:: paragraph The right-click on the new created TAR file and extract the actual APEX distribution. .. container:: imageblock .. container:: content |Extract the APEX distribution| .. container:: paragraph Inside the new APEX folder you see the main directories: ``bin``, ``etc``, ``examples``, ``lib``, and ``war`` .. container:: paragraph Once extracted, please rename the created folder to ``apex-full-2.0.0-SNAPSHOT``. This will keep the directory name in line with the rest of this documentation. Install Manually from Archive (Windows, 7Zip, CMD) -------------------------------------------------- .. container:: paragraph Download a ``tar.gz`` archive and copy the file into the install folder (in this example ``C:\apex``). Start ``cmd``, for instance typing ``Windows+R`` and then ``cmd`` in the dialog. Assuming ``7Zip`` is installed in the standard folder, simply run the following commands (for APEX version 2.0.0-SNAPSHOT full distribution) .. container:: listingblock .. container:: content .. code:: bash :number-lines: >c: >cd \apex >"\Program Files\7-Zip\7z.exe" x apex-pdp-package-full-2.0.0-SNAPSHOT.tar.gz -so | "\Program Files\7-Zip\7z.exe" x -aoa -si -ttar -o"apex-full-2.0.0-SNAPSHOT" .. container:: paragraph APEX is now installed in the folder ``C:\apex\apex-full-2.0.0-SNAPSHOT``. Build from Source ^^^^^^^^^^^^^^^^^ Build and Install Manually (Unix, Windows, Cygwin) -------------------------------------------------- .. container:: paragraph Clone the APEX GIT repositories into a directory. Go to that directory. Use Maven to build APEX (all details on building APEX from source can be found in *APEX HowTo: Build*). Install from the created artifacts (``rpm``, ``deb``, ``tar.gz``, or copying manually). .. important:: Building RPM distributions RPM images are only build if the ``rpm`` package is installed (Unix). To install ``rpm`` run ``sudo apt-get install rpm``, then build APEX. .. container:: paragraph The following example shows how to build the APEX system, without tests (``-DskipTests``) to safe some time. It assumes that the APX GIT repositories are cloned to: .. container:: ulist - Unix, Cygwin: ``/usr/local/src/apex`` - Windows: ``C:\dev\apex`` +-------------------------------------------------------+--------------------------------------------------------+ | Unix, Cygwin | Windows | +=======================================================+========================================================+ | .. container:: | .. container:: | | | | | .. container:: content | .. container:: content | | | | | .. code:: bash | .. code:: bash | | :number-lines: | :number-lines: | | | | | >c: | # cd /usr/local/src/apex | | >cd \dev\apex | # mvn clean install -DskipTests | | >mvn clean install -DskipTests | | +-------------------------------------------------------+--------------------------------------------------------+ .. container:: paragraph The build takes about 2 minutes without test and about 4-5 minutes with tests on a standard development laptop. It should run through without errors, but with a lot of messages from the build process. If build with tests (i.e. without ``-DskipTests``), there will be error messages and stack trace prints from some tests. This is normal, as long as the build finishes successful. .. container:: paragraph When Maven is finished with the build, the final screen should look similar to this (omitting some ``success`` lines): .. container:: listingblock .. container:: content .. code:: bash :number-lines: [INFO] tools .............................................. SUCCESS [ 0.248 s] [INFO] tools-common ....................................... SUCCESS [ 0.784 s] [INFO] simple-wsclient .................................... SUCCESS [ 3.303 s] [INFO] model-generator .................................... SUCCESS [ 0.644 s] [INFO] packages ........................................... SUCCESS [ 0.336 s] [INFO] apex-pdp-package-full .............................. SUCCESS [01:10 min] [INFO] Policy APEX PDP - Docker build 2.0.0-SNAPSHOT ...... SUCCESS [ 10.307 s] [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 03:43 min [INFO] Finished at: 2018-09-03T11:56:01+01:00 [INFO] ------------------------------------------------------------------------ .. container:: paragraph The build will have created all artifacts required for an APEX installation. The following example show how to change to the target directory and how it should look like. +-----------------------------------------------------------------------------------------------------------------------------+ | Unix, Cygwin | +=============================================================================================================================+ | .. container:: | | | | .. container:: listingblock | | | | .. code:: bash | | :number-lines: | | | | # cd packages/apex-pdp-package-full/target | | # ls -l | | -rwxrwx---+ 1 esvevan Domain Users 772 Sep 3 11:55 apex-pdp-package-full_2.0.0~SNAPSHOT_all.changes* | | -rwxrwx---+ 1 esvevan Domain Users 146328082 Sep 3 11:55 apex-pdp-package-full-2.0.0-SNAPSHOT.deb* | | -rwxrwx---+ 1 esvevan Domain Users 15633 Sep 3 11:54 apex-pdp-package-full-2.0.0-SNAPSHOT.jar* | | -rwxrwx---+ 1 esvevan Domain Users 146296819 Sep 3 11:55 apex-pdp-package-full-2.0.0-SNAPSHOT-tarball.tar.gz* | | drwxrwx---+ 1 esvevan Domain Users 0 Sep 3 11:54 archive-tmp/ | | -rwxrwx---+ 1 esvevan Domain Users 89 Sep 3 11:54 checkstyle-cachefile* | | -rwxrwx---+ 1 esvevan Domain Users 10621 Sep 3 11:54 checkstyle-checker.xml* | | -rwxrwx---+ 1 esvevan Domain Users 584 Sep 3 11:54 checkstyle-header.txt* | | -rwxrwx---+ 1 esvevan Domain Users 86 Sep 3 11:54 checkstyle-result.xml* | | drwxrwx---+ 1 esvevan Domain Users 0 Sep 3 11:54 classes/ | | drwxrwx---+ 1 esvevan Domain Users 0 Sep 3 11:54 dependency-maven-plugin-markers/ | | drwxrwx---+ 1 esvevan Domain Users 0 Sep 3 11:54 etc/ | | drwxrwx---+ 1 esvevan Domain Users 0 Sep 3 11:54 examples/ | | drwxrwx---+ 1 esvevan Domain Users 0 Sep 3 11:55 install_hierarchy/ | | drwxrwx---+ 1 esvevan Domain Users 0 Sep 3 11:54 maven-archiver/ | +-----------------------------------------------------------------------------------------------------------------------------+ +-----------------------------------------------------------------------------------------------------------------------------+ | Windows | +=============================================================================================================================+ | .. container:: | | | | .. container:: listingblock | | | | .. code:: bash | | :number-lines: | | | | >cd packages\apex-pdp-package-full\target | | >dir | | 03/09/2018 11:55 . | | 03/09/2018 11:55 .. | | 03/09/2018 11:55 146,296,819 apex-pdp-package-full-2.0.0-SNAPSHOT-tarball.tar.gz | | 03/09/2018 11:55 146,328,082 apex-pdp-package-full-2.0.0-SNAPSHOT.deb | | 03/09/2018 11:54 15,633 apex-pdp-package-full-2.0.0-SNAPSHOT.jar | | 03/09/2018 11:55 772 apex-pdp-package-full_2.0.0~SNAPSHOT_all.changes | | 03/09/2018 11:54 archive-tmp | | 03/09/2018 11:54 89 checkstyle-cachefile | | 03/09/2018 11:54 10,621 checkstyle-checker.xml | | 03/09/2018 11:54 584 checkstyle-header.txt | | 03/09/2018 11:54 86 checkstyle-result.xml | | 03/09/2018 11:54 classes | | 03/09/2018 11:54 dependency-maven-plugin-markers | | 03/09/2018 11:54 etc | | 03/09/2018 11:54 examples | | 03/09/2018 11:55 install_hierarchy | | 03/09/2018 11:54 maven-archiver | | 8 File(s) 292,652,686 bytes | | 9 Dir(s) 14,138,720,256 bytes free | +-----------------------------------------------------------------------------------------------------------------------------+ .. container:: paragraph Now, take the ``.deb`` or the ``.tar.gz`` file and install APEX. Alternatively, copy the content of the folder ``install_hierarchy`` to your APEX directory. Installation Layout ^^^^^^^^^^^^^^^^^^^ .. container:: paragraph A full installation of APEX comes with the following layout. .. container:: listingblock .. container:: content :: $APEX_HOME ├───bin (1) ├───etc (2) │ ├───editor │ ├───hazelcast │ ├───infinispan │ └───META-INF ├───examples (3) │ ├───config (4) │ ├───docker (5) │ ├───events (6) │ ├───html (7) │ ├───models (8) │ └───scripts (9) ├───lib (10) │ └───applications (11) └───war (12) .. container:: colist arabic +-----------------------------------+-----------------------------------+ | **1** | binaries, mainly scripts (bash | | | and bat) to start the APEX engine | | | and applications | +-----------------------------------+-----------------------------------+ | **2** | configuration files, such as | | | logback (logging) and third party | | | library configurations | +-----------------------------------+-----------------------------------+ | **3** | example policy models to get | | | started | +-----------------------------------+-----------------------------------+ | **4** | configurations for the examples | | | (with sub directories for | | | individual examples) | +-----------------------------------+-----------------------------------+ | **5** | Docker files and additional | | | Docker instructions for the | | | exampples | +-----------------------------------+-----------------------------------+ | **6** | example events for the examples | | | (with sub directories for | | | individual examples) | +-----------------------------------+-----------------------------------+ | **7** | HTML files for some examples, | | | e.g. the Decisionmaker example | +-----------------------------------+-----------------------------------+ | **8** | the policy models, generated for | | | each example (with sub | | | directories for individual | | | examples) | +-----------------------------------+-----------------------------------+ | **9** | additional scripts for the | | | examples (with sub directories | | | for individual examples) | +-----------------------------------+-----------------------------------+ | **10** | the library folder with all Java | | | JAR files | +-----------------------------------+-----------------------------------+ | **11** | applications, also known as jar | | | with dependencies (or fat jars), | | | individually deployable | +-----------------------------------+-----------------------------------+ | **12** | WAR files for web applications | +-----------------------------------+-----------------------------------+ System Configuration ^^^^^^^^^^^^^^^^^^^^ .. container:: paragraph Once APEX is installed, a few configurations need to be done: .. container:: ulist - Create an APEX user and an APEX group (optional, if not installed using RPM and DPKG) - Create environment settings for ``APEX_HOME`` and ``APEX_USER``, required by the start scripts - Change settings of the logging framework (optional) - Create directories for logging, required (execution might fail if directories do not exist or cannot be created) APEX User and Group ------------------- .. container:: paragraph On smaller installations and test systems, APEX can run as any user or group. .. container:: paragraph However, if APEX is installed in production, we strongly recommend you set up a dedicated user for running APEX. This will isolate the execution of APEX to that user. We recommend you use the userid ``apexuser`` but you may use any user you choose. .. container:: paragraph The following example, for UNIX, creates a group called ``apexuser``, an APEX user called ``apexuser``, adds the group to the user, and changes ownership of the APEX installation to the user. Substitute ```` with the directory where APEX is installed. .. container:: listingblock .. container:: content .. code:: bash :number-lines: # sudo groupadd apexuser # sudo useradd -g apexuser apexuser # sudo chown -R apexuser:apexuser .. container:: paragraph For other operating systems please consult your manual or system administrator. Environment Settings: APEX_HOME and APEX_USER --------------------------------------------- .. container:: paragraph The provided start scripts for APEX require two environment variables being set: .. container:: ulist - ``APEX_USER`` with the user under whos name and permission APEX should be started (Unix only) - ``APEX_HOME`` with the directory where APEX is installed (Unix, Windows, Cygwin) .. container:: paragraph The first row in the following table shows how to set these environment variables temporary (assuming the user is ``apexuser``). The second row shows how to verify the settings. The last row explains how to set those variables permanently. +------------------------------------------------+---------------------------------------------------------+ | Unix, Cygwin (bash/tcsh) | Windows | +================================================+=========================================================+ | .. container:: | .. container:: | | | | | .. container:: content | .. container:: content | | | | | .. code:: bash | .. code:: bash | | :number-lines: | :number-lines: | | | | | # export APEX_USER=apexuser | >set APEX_HOME=C:\apex\apex-full-2.0.0-SNAPSHOT | | # cd /opt/app/policy/apex-pdp | | | # export APEX_HOME=`pwd` | | | | | +------------------------------------------------+ | | .. container:: | | | | | | .. container:: content | | | | | | .. code:: tcsh | | | :number-lines: | | | | | | # setenv APEX_USER apexuser | | | # cd /opt/app/policy/apex-pdp | | | # setenv APEX_HOME `pwd` | | | | | +------------------------------------------------+---------------------------------------------------------+ | .. container:: | .. container:: | | | | | .. container:: content | .. container:: content | | | | | .. code:: bash | .. code:: bash | | :number-lines: | :number-lines: | | | | | # env | grep APEX | >set APEX_HOME | | # APEX_USER=apexuser | APEX_HOME=\apex\apex-full-2.0.0-SNAPSHOT | | # APEX_HOME=/opt/app/policy/apex-pdp | | | | | +------------------------------------------------+---------------------------------------------------------+ Making Environment Settings Permanent (Unix, Cygwin) #################################################### .. container:: paragraph For a per-user setting, edit the a user’s ``bash`` or ``tcsh`` settings in ``~/.bashrc`` or ``~/.tcshrc``. For system-wide settings, edit ``/etc/profiles`` (requires permissions). Making Environment Settings Permanent (Windows) ############################################### .. container:: paragraph On Windows 7 do .. container:: ulist - Click on the **Start** Menu - Right click on **Computer** - Select **Properties** .. container:: paragraph On Windows 8/10 do .. container:: ulist - Click on the **Start** Menu - Select **System** .. container:: paragraph Then do the following .. container:: ulist - Select **Advanced System Settings** - On the **Advanced** tab, click the **Environment Variables** button - Edit an existing variable, or create a new System variable: 'Variable name'="APEX_HOME", 'Variable value'="C:\apex\apex-full-2.0.0-SNAPSHOT" .. container:: paragraph For the settings to take effect, an application needs to be restarted (e.g. any open ``cmd`` window). Edit the APEX Logging Settings ------------------------------ .. container:: paragraph Configure the APEX logging settings to your requirements, for instance: .. container:: ulist - change the directory where logs are written to, or - change the log levels .. container:: paragraph Edit the file ``$APEX_HOME/etc/logback.xml`` for any required changes. To change the log directory change the line .. container:: paragraph ```` .. container:: paragraph to .. container:: paragraph ```` .. container:: paragraph On Windows, it is recommended to change the log directory to: .. container:: paragraph ```` .. container:: paragraph Note: Be careful about when to use ``\`` vs. ``/`` as the path separator! Create Directories for Logging ------------------------------ .. container:: paragraph Make sure that the log directory exists. This is important when APEX was installed manually or when the log directory was changed in the settings (see above). +------------------------------------------------------------------+-------------------------------------------------------+ | Unix, Cygwin | Windows | +==================================================================+=======================================================+ | .. container:: | .. container:: | | | | | .. container:: content | .. container:: content | | | | | .. code:: bash | .. code:: bash | | :number-lines: | :number-lines: | | | | | mkdir -p /var/log/onap/policy/apex-pdp | >mkdir C:\apex\apex-full-2.0.0-SNAPSHOT\logs | | chown -R apexuser:apexuser /var/log/onap/policy/apex-pdp | | +------------------------------------------------------------------+-------------------------------------------------------+ Verify the APEX Installation ############################ .. container:: sectionbody .. container:: paragraph When APEX is installed and all settings are realized, the installation can be verified. Verify Installation - run Engine -------------------------------- .. container:: paragraph A simple verification of an APEX installation can be done by simply starting the APEX engine without any configuration. On Unix (or Cygwin) start the engine using ``$APEX_HOME/bin/apexEngine.sh``. On Windows start the engine using ``%APEX_HOME%\bin\apexEngine.bat``. The engine will fail to fully start. However, if the output looks similar to the following line, the APEX installation is realized. .. container:: listingblock .. container:: content .. code:: bash :number-lines: Starting Apex service with parameters [] . . . start of Apex service failed: Apex configuration file was not specified as an argument 2018-09-03 13:11:33,914 Apex [main] ERROR o.o.p.a.service.engine.main.ApexMain - start of Apex service failed org.onap.policy.apex.model.basicmodel.concepts.ApexException: Apex configuration file was not specified as an argument at org.onap.policy.apex.service.engine.main.ApexCommandLineArguments.validateReadableFile(ApexCommandLineArguments.java:267) at org.onap.policy.apex.service.engine.main.ApexCommandLineArguments.validate(ApexCommandLineArguments.java:161) at org.onap.policy.apex.service.engine.main.ApexMain.(ApexMain.java:68) at org.onap.policy.apex.service.engine.main.ApexMain.main(ApexMain.java:165) usage: org.onap.policy.apex.service.engine.main.ApexMain [options...] options -c,--config-file the full path to the configuration file to use, the configuration file must be a Json file containing the Apex configuration parameters -h,--help outputs the usage of this command -m,--model-file the full path to the model file to use, if set it overrides the model file set in the configuration file -v,--version outputs the version of Apex Verify Installation - run an Example ------------------------------------ .. container:: paragraph A full APEX installation comes with several examples. Here, we can fully verify the installation by running one of the examples. .. container:: paragraph We use the example called *SampleDomain* and configure the engine to use standard in and standard out for events. Run the engine with the provided configuration. Note: Cygwin executes scripts as Unix scripts but runs Java as a Windows application, thus the configuration file must be given as a Windows path. .. container:: listingblock .. container:: content .. code:: bash :number-lines: # $APEX_HOME/bin/apexEngine.sh -c $APEX_HOME/examples/config/SampleDomain/Stdin2StdoutJsonEventJava.json (1) # $APEX_HOME/bin/apexEngine.sh -c C:/apex/apex-full-2.0.0-SNAPSHOT/examples/config/SampleDomain/Stdin2StdoutJsonEventJava.json (2) >%APEX_HOME%\bin\apexEngine.bat -c %APEX_HOME%\examples\config\SampleDomain\Stdin2StdoutJsonEventJava.json :: (3) .. container:: colist arabic +-------+---------+ | **1** | UNIX | +-------+---------+ | **2** | Cygwin | +-------+---------+ | **3** | Windows | +-------+---------+ .. container:: paragraph The engine should start successfully. Assuming the logging levels are not change (default level is ``info``), the output should look similar to this (last few lines) .. container:: listingblock .. container:: content .. code:: bash :number-lines: Starting Apex service with parameters [-c, v:/dev/ericsson/apex/onap/apex-pdp/packages/apex-pdp-package-full/target/install_hierarchy/examples/config/SampleDomain/Stdin2StdoutJsonEventJava.json] . . . 2018-09-05 15:16:42,800 Apex [main] INFO o.o.p.a.s.e.r.impl.EngineServiceImpl - Created apex engine MyApexEngine-0:0.0.1 . 2018-09-05 15:16:42,804 Apex [main] INFO o.o.p.a.s.e.r.impl.EngineServiceImpl - Created apex engine MyApexEngine-1:0.0.1 . 2018-09-05 15:16:42,804 Apex [main] INFO o.o.p.a.s.e.r.impl.EngineServiceImpl - Created apex engine MyApexEngine-2:0.0.1 . 2018-09-05 15:16:42,805 Apex [main] INFO o.o.p.a.s.e.r.impl.EngineServiceImpl - Created apex engine MyApexEngine-3:0.0.1 . 2018-09-05 15:16:42,805 Apex [main] INFO o.o.p.a.s.e.r.impl.EngineServiceImpl - APEX service created. 2018-09-05 15:16:43,962 Apex [main] INFO o.o.p.a.s.e.e.EngDepMessagingService - engine<-->deployment messaging starting . . . 2018-09-05 15:16:43,963 Apex [main] INFO o.o.p.a.s.e.e.EngDepMessagingService - engine<-->deployment messaging started 2018-09-05 15:16:44,987 Apex [main] INFO o.o.p.a.s.e.r.impl.EngineServiceImpl - Registering apex model on engine MyApexEngine-0:0.0.1 2018-09-05 15:16:45,112 Apex [main] INFO o.o.p.a.s.e.r.impl.EngineServiceImpl - Registering apex model on engine MyApexEngine-1:0.0.1 2018-09-05 15:16:45,113 Apex [main] INFO o.o.p.a.s.e.r.impl.EngineServiceImpl - Registering apex model on engine MyApexEngine-2:0.0.1 2018-09-05 15:16:45,113 Apex [main] INFO o.o.p.a.s.e.r.impl.EngineServiceImpl - Registering apex model on engine MyApexEngine-3:0.0.1 2018-09-05 15:16:45,120 Apex [main] INFO o.o.p.a.s.e.r.impl.EngineServiceImpl - Added the action listener to the engine Started Apex service .. container:: paragraph Important are the last two line, stating that APEX has added the final action listener to the engine and that the engine is started. .. container:: paragraph The engine is configured to read events from standard input and write produced events to standard output. The policy model is a very simple policy. .. container:: paragraph The following table shows an input event in the left column and an output event in the right column. Past the input event into the console where APEX is running, and the output event should appear in the console. Pasting the input event multiple times will produce output events with different values. +-------------------------------------------------------------+-------------------------------------------------------------+ | Input Event | Example Output Event | +=============================================================+=============================================================+ | .. container:: | .. container:: | | | | | .. container:: content | .. container:: content | | | | | .. code:: bash | .. code:: bash | | :number-lines: | :number-lines: | | | | | { | { | | "nameSpace": "org.onap.policy.apex.sample.events", | "name": "Event0004", | | "name": "Event0000", | "version": "0.0.1", | | "version": "0.0.1", | "nameSpace": "org.onap.policy.apex.sample.events", | | "source": "test", | "source": "Act", | | "target": "apex", | "target": "Outside", | | "TestSlogan": "Test slogan for External Event0", | "TestActCaseSelected": 2, | | "TestMatchCase": 0, | "TestActStateTime": 1536157104627, | | "TestTimestamp": 1469781869269, | "TestDecideCaseSelected": 0, | | "TestTemperature": 9080.866 | "TestDecideStateTime": 1536157104625, | | } | "TestEstablishCaseSelected": 0, | | | "TestEstablishStateTime": 1536157104623, | | | "TestMatchCase": 0, | | | "TestMatchCaseSelected": 1, | | | "TestMatchStateTime": 1536157104620, | | | "TestSlogan": "Test slogan for External Event0", | | | "TestTemperature": 9080.866, | | | "TestTimestamp": 1469781869269 | | | } | +-------------------------------------------------------------+-------------------------------------------------------------+ .. container:: paragraph Terminate APEX by simply using ``CTRL+C`` in the console. Verify a Full Installation - REST Editor ---------------------------------------- .. container:: paragraph APEX has a REST application for viewing policy models. The application can also be used to create new policy models close to the engine native policy language. Start the REST editor as follows. .. container:: listingblock .. container:: content .. code:: bash :number-lines: # $APEX_HOME/bin/apexApps.sh rest-editor .. container:: listingblock .. container:: content .. code:: bash :number-lines: >%APEX_HOME%\bin\apexApps.bat rest-editor .. container:: paragraph The script will start a simple web server (`Grizzly `__) and deploy a ``war`` web archive in it. Once the editor is started, it will be available on ``localhost:18989``. The last few line of the messages should be: .. container:: listingblock .. container:: content .. code:: bash :number-lines: Apex Editor REST endpoint (ApexEditorMain: Config=[ApexEditorParameters: URI=http://localhost:18989/apexservices/, TTL=-1sec], State=READY) starting at http://localhost:18989/apexservices/ . . . Sep 05, 2018 10:35:57 PM org.glassfish.grizzly.http.server.NetworkListener start INFO: Started listener bound to [localhost:18989] Sep 05, 2018 10:35:57 PM org.glassfish.grizzly.http.server.HttpServer start INFO: [HttpServer] Started. Apex Editor REST endpoint (ApexEditorMain: Config=[ApexEditorParameters: URI=http://localhost:18989/apexservices/, TTL=-1sec], State=RUNNING) started at http://localhost:18989/apexservices/ .. container:: paragraph Now open a browser (Firefox, Chrome, Opera, Internet Explorer) and use the URL ``http://localhost:18989/``. This will connect the browser to the started REST editor. The start screen should be as follows. .. container:: imageblock .. container:: content |REST Editor Start Screen| .. container:: title Figure 1. REST Editor Start Screen .. container:: paragraph Now load a policy model by clicking the menu ``File`` and then ``Open``. In the opened dialog, go to the directory where APEX is installed, then ``examples``, ``models``, ``SampleDomain``, and there select the file ``SamplePolicyModelJAVA.json``. This will load the policy model used to verify the policy engine (see above). Once loaded, the screen should look as follows. .. container:: imageblock .. container:: content |REST Editor with loaded SampleDomain Policy Model| .. container:: title Figure 2. REST Editor with loaded SampleDomain Policy Model .. container:: paragraph Now you can use the REST editor. To finish this verification, simply terminate your browser (or the tab), and then use ``CTRL+C`` in the console where you started the REST editor. Installing WAR Applications ^^^^^^^^^^^^^^^^^^^^^^^^^^^ .. container:: sectionbody .. container:: paragraph APEX comes with a set of WAR files. These are complete applications that can be installed and run in an application server. All of these applications are realized as servlets. You can find the WAR applications in ``$APEX_HOME/war`` (UNIX, Cygwin) or ``%APEX_HOME%\war`` (Windows). .. container:: paragraph Installing and using the WAR applications requires a web server that can execute ``war`` web archives. We recommend to use `Apache Tomcat `__, however other web servers can be used as well. .. container:: paragraph Install Apache Tomcat including the ``Manager App``, see `V9.0 Docs `__ for details. Start the Tomcat service, or make sure that Tomcat is running. .. container:: paragraph There are multiple ways to install the APEX WAR applications: .. container:: ulist - copy the ``.war`` file into the Tomcat ``webapps`` folder - use the Tomcat ``Manager App`` to deploy via the web interface - deploy using a REST call to Tomcat .. container:: paragraph For details on how to install ``war`` files please consult the `Tomcat Documentation `__ or the `Manager App HOW-TO `__. Once you installed an APEX WAR application (and wait for sufficient time for Tomcat to finalize the installation), open the ``Manager App`` in Tomcat. You should see the APEX WAR application being installed and running. .. container:: paragraph In case of errors, examine the log files in the Tomcat log directory. In a conventional install, those log files are in the logs directory where Tomcat is installed. .. container:: paragraph The current APEX version provides the following WAR applications: .. container:: ulist - client-deployment-2.0.0-SNAPSHOT.war - a client to deploy new policy models to a running engine - client-editor-2.0.0-SNAPSHOT.war - the standard policy REST editor GUI - client-monitoring-2.0.0-SNAPSHOT.war - a client for monitoring a running APEX engine - client-full-2.0.0-SNAPSHOT.war - a full client with a one-stop-access to deployment, monitoring, and REST editor - examples-servlet-2.0.0-SNAPSHOT.war - an example APEX servlet Running APEX in Docker ^^^^^^^^^^^^^^^^^^^^^^ .. container:: sectionbody .. container:: paragraph Since APEX is in ONAP, we provide a full virtualization environment for the engine. Run in ONAP ----------- .. container:: paragraph Running APEX from the ONAP docker repository only requires 2 commands: .. container:: olist arabic #. Log into the ONAP docker repo .. container:: listingblock .. container:: content :: docker login -u docker -p docker nexus3.onap.org:10003 .. container:: olist arabic #. Run the APEX docker image .. container:: listingblock .. container:: content :: docker run -it --rm nexus3.onap.org:10003/onap/policy-apex-pdp:latest Build a Docker Image -------------------- .. container:: paragraph Alternatively, one can use the Dockerfile defined in the Docker package to build an image. .. container:: listingblock .. container:: title APEX Dockerfile .. container:: content .. code:: bash :number-lines: # # Docker file to build an image that runs APEX on Java 8 in Ubuntu # FROM ubuntu:16.04 RUN apt-get update && \ apt-get upgrade -y && \ apt-get install -y software-properties-common && \ add-apt-repository ppa:openjdk-r/ppa -y && \ apt-get update && \ apt-get install -y openjdk-8-jdk # Create apex user and group RUN groupadd apexuser RUN useradd --create-home -g apexuser apexuser # Add Apex-specific directories and set ownership as the Apex admin user RUN mkdir -p /opt/app/policy/apex-pdp RUN mkdir -p /var/log/onap/policy/apex-pdp RUN chown -R apexuser:apexuser /var/log/onap/policy/apex-pdp # Unpack the tarball RUN mkdir /packages COPY apex-pdp-package-full.tar.gz /packages RUN tar xvfz /packages/apex-pdp-package-full.tar.gz --directory /opt/app/policy/apex-pdp RUN rm /packages/apex-pdp-package-full.tar.gz # Ensure everything has the correct permissions RUN find /opt/app -type d -perm 755 RUN find /opt/app -type f -perm 644 RUN chmod a+x /opt/app/policy/apex-pdp/bin/* # Copy examples to Apex user area RUN cp -pr /opt/app/policy/apex-pdp/examples /home/apexuser RUN apt-get clean RUN chown -R apexuser:apexuser /home/apexuser/* USER apexuser ENV PATH /opt/app/policy/apex-pdp/bin:$PATH WORKDIR /home/apexuser .. container:: :name: footer .. container:: :name: footer-text 2.0.0-SNAPSHOT Last updated 2018-09-10 15:38:16 IST .. |Extract the TAR archive| image:: images/install-guide/win-extract-tar-gz.png .. |Extract the APEX distribution| image:: images/install-guide/win-extract-tar.png .. |REST Editor Start Screen| image:: images/install-guide/rest-start.png .. |REST Editor with loaded SampleDomain Policy Model| image:: images/install-guide/rest-loaded.png