diff options
Diffstat (limited to 'docs/usecases')
| -rw-r--r-- | docs/usecases/pnf-simulator-demo-cba.zip | bin | 0 -> 31920 bytes | |||
| -rw-r--r-- | docs/usecases/pnf-simulator.rst | 632 | ||||
| -rw-r--r-- | docs/usecases/use-cases.rst | 3 |
3 files changed, 634 insertions, 1 deletions
diff --git a/docs/usecases/pnf-simulator-demo-cba.zip b/docs/usecases/pnf-simulator-demo-cba.zip Binary files differnew file mode 100644 index 000000000..08ee91b76 --- /dev/null +++ b/docs/usecases/pnf-simulator-demo-cba.zip diff --git a/docs/usecases/pnf-simulator.rst b/docs/usecases/pnf-simulator.rst new file mode 100644 index 000000000..064cba32b --- /dev/null +++ b/docs/usecases/pnf-simulator.rst @@ -0,0 +1,632 @@ +.. This work is a derivative of https://wiki.onap.org/display/DW/PNF+Simulator+Day-N+config-assign+and+config-deploy+use+case +.. This work is licensed under a Creative Commons Attribution 4.0 +.. International License. http://creativecommons.org/licenses/by/4.0 +.. Copyright (C) 2020 Deutsche Telekom AG. + +PNF Simulator Day-N config-assign/deploy +======================================== + + + +Overview +~~~~~~~~~~ + +This use case shows in a very simple way how a blueprint model of a PNF is created in CDS and how the day-n configuration is +assigned and deployed through CDS. A Netconf server (docker image `sysrepo/sysrepo-netopeer2`) is used for simulating the PNF. + +This use case (POC) solely requires a running CDS and the PNF Simulator running on a VM (Ubuntu is used by the author). +No other module of ONAP is needed. + +There are different ways to run CDS, to run PNF simulator and to do configuration deployment. This guide will show +different possible options to allow the greatest possible flexibility. + +Run CDS (Blueprint Processor) +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +CDS can be run in Kubernetes (Minikube, Microk8s) or in an IDE. You can choose your favorite option. +Just the blueprint processor of CDS is needed. If you have desktop access it is recommended to run CDS in an IDE since +it is easy and enables debugging. + +* CDS in Microk8s: https://wiki.onap.org/display/DW/Running+CDS+on+Microk8s (RDT link to be added) +* CDS in Minikube: https://wiki.onap.org/display/DW/Running+CDS+in+minikube (RDT link to be added) +* CDS in an IDE: https://docs.onap.org/projects/onap-ccsdk-cds/en/latest/userguide/running-bp-processor-in-ide.html + +After CDS is running remember the port of blueprint processor, you will need it later on. + +Run PNF Simulator and install module +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +There are many different ways to run a Netconf Server to simulate the PNF, in this guide `sysrepo/sysrepo-netopeer2` +docker image is commonly used. The easiest way is to run the out-of-the-box docker container without any +other configuration, modules or scripts. In the ONAP community there are other workflows existing for running the +PNF Simulator. These workflows are also using `sysrepo/sysrepo-netopeer2` docker image. These workflow are also linked +here but they are not tested by the author of this guide. + +.. tabs:: + + .. tab:: sysrepo/sysrepo-netopeer2 (latest) + + .. warning:: + Currently there is an issue for the SSH connection between CDS and the netconf server because of unmatching + exchange key algorhithms. Use legacy version until the issue is resolved. + + Download and run docker container with ``docker run -d --name netopeer2 -p 830:830 -p 6513:6513 sysrepo/sysrepo-netopeer2:latest`` + + Enter the container with ``docker exec -it netopeer2 bin/bash`` + + Browse to the target location where all YANG modules exist: ``cd /etc/sysrepo/yang`` + + Create a simple mock YANG model for a packet generator (pg.yang). + + .. code-block:: sh + :caption: **pg.yang** + + module sample-plugin { + + yang-version 1; + namespace "urn:opendaylight:params:xml:ns:yang:sample-plugin"; + prefix "sample-plugin"; + + description + "This YANG module defines the generic configuration and + operational data for sample-plugin in VPP"; + + revision "2016-09-18" { + description "Initial revision of sample-plugin model"; + } + + container sample-plugin { + + uses sample-plugin-params; + description "Configuration data of sample-plugin in Honeycomb"; + + // READ + // curl -u admin:admin http://localhost:8181/restconf/config/sample-plugin:sample-plugin + + // WRITE + // curl http://localhost:8181/restconf/operational/sample-plugin:sample-plugin + + } + + grouping sample-plugin-params { + container pg-streams { + list pg-stream { + + key id; + leaf id { + type string; + } + + leaf is-enabled { + type boolean; + } + } + } + } + } + + Create the following sample XML data definition for the above model (pg-data.xml). + Later on this will initialise one single PG stream. + + .. code-block:: sh + :caption: **pg-data.xml** + + <sample-plugin xmlns="urn:opendaylight:params:xml:ns:yang:sample-plugin"> + <pg-streams> + <pg-stream> + <id>1</id> + <is-enabled>true</is-enabled> + </pg-stream> + </pg-streams> + </sample-plugin> + + Execute the following command within netopeer docker container to install the pg.yang model + + .. code-block:: sh + + sysrepoctl -v3 -i pg.yang + + .. note:: + This command will just schedule the installation, it will be applied once the server is restarted. + + Stop the container from outside with ``docker stop netopeer2`` and start it again with ``docker start netopeer2`` + + Enter the container like it's mentioned above with ``docker exec -it netopeer2 bin/bash``. + + You can check all installed modules with ``sysrepoctl -l``. `sample-plugin` module should appear with ``I`` flag. + + Execute the following the commands to initialise the Yang model with one pg-stream record. + We will be using CDS to perform the day-1 configuration and day-2 configuration changes. + + .. code-block:: sh + + netopeer2-cli + > connect --host localhost --login root + # passwort is root + > get --filter-xpath /sample-plugin:* + # shows existing pg-stream records (empty) + > edit-config --target running --config=/etc/sysrepo/yang/pg-data.xml + # initialises Yang model with one pg-stream record + > get --filter-xpath /sample-plugin:* + # shows initialised pg-stream + + If the output of the last command is like this, everything went successful: + + .. code-block:: sh + + DATA + <sample-plugin xmlns="urn:opendaylight:params:xml:ns:yang:sample-plugin"> + <pg-streams> + <pg-stream> + <id>1</id> + <is-enabled>true</is-enabled> + </pg-stream> + </pg-streams> + </sample-plugin> + + + .. tab:: sysrepo/sysrepo-netopeer2 (legacy) + + Download and run docker container with ``docker run -d --name netopeer2 -p 830:830 -p 6513:6513 sysrepo/sysrepo-netopeer2:legacy`` + + Enter the container with ``docker exec -it netopeer2 bin/bash`` + + Browse to the target location where all YANG modules exist: ``cd /opt/dev/sysrepo/yang`` + + Create a simple mock YANG model for a packet generator (pg.yang). + + .. code-block:: sh + :caption: **pg.yang** + + module sample-plugin { + + yang-version 1; + namespace "urn:opendaylight:params:xml:ns:yang:sample-plugin"; + prefix "sample-plugin"; + + description + "This YANG module defines the generic configuration and + operational data for sample-plugin in VPP"; + + revision "2016-09-18" { + description "Initial revision of sample-plugin model"; + } + + container sample-plugin { + + uses sample-plugin-params; + description "Configuration data of sample-plugin in Honeycomb"; + + // READ + // curl -u admin:admin http://localhost:8181/restconf/config/sample-plugin:sample-plugin + + // WRITE + // curl http://localhost:8181/restconf/operational/sample-plugin:sample-plugin + + } + + grouping sample-plugin-params { + container pg-streams { + list pg-stream { + + key id; + leaf id { + type string; + } + + leaf is-enabled { + type boolean; + } + } + } + } + } + + Create the following sample XML data definition for the above model (pg-data.xml). + Later on this will initialise one single PG (packet-generator) stream. + + .. code-block:: sh + :caption: **pg-data.xml** + + <sample-plugin xmlns="urn:opendaylight:params:xml:ns:yang:sample-plugin"> + <pg-streams> + <pg-stream> + <id>1</id> + <is-enabled>true</is-enabled> + </pg-stream> + </pg-streams> + </sample-plugin> + + Execute the following command within netopeer docker container to install the pg.yang model + + .. code-block:: sh + + sysrepoctl -i -g pg.yang + + You can check all installed modules with ``sysrepoctl -l``. `sample-plugin` module should appear with ``I`` flag. + + In legacy version of `sysrepo/sysrepo-netopeer2` subscribers of a module are required, otherwise they are not + running and configurations changes are not accepted, see https://github.com/sysrepo/sysrepo/issues/1395. There is + an predefined application mock up which can be used for that. The usage is described + `https://github.com/sysrepo/sysrepo/issues/1395 <https://asciinema.org/a/160247>`_. You need to run the following + commands to start the example application for subscribing to sample-plugin Yang module. + + .. code-block:: sh + + cd /opt/dev/sysrepo/build/examples + ./application_example sample-plugin + + Following output should appear: + + .. code-block:: sh + + ========== STARTUP CONFIG sample-plugin APPLIED AS RUNNING ========== + + ========== CONFIG HAS CHANGED, CURRENT RUNNING CONFIG sample-plugin: ========== + + /sample-plugin:sample-plugin (container) + /sample-plugin:sample-plugin/pg-streams (container) + /sample-plugin:sample-plugin/pg-streams/pg-stream[id='1'] (list instance) + /sample-plugin:sample-plugin/pg-streams/pg-stream[id='1']/id = 1 + /sample-plugin:sample-plugin/pg-streams/pg-stream[id='1']/is-enabled = true + + The terminal session needs to be kept open after application has started. + + Open a new terminal and enter the container with ``docker exec -it netopeer2 bin/bash``. + Execute the following commands in the container to initialise the Yang model with one pg-stream record. + We will be using CDS to perform the day-1 configuration and day-2 configuration changes. + + .. code-block:: sh + + netopeer2-cli + > connect --host localhost --login netconf + # passwort is netconf + > get --filter-xpath /sample-plugin:* + # shows existing pg-stream records (empty) + > edit-config --target running --config=/opt/dev/sysrepo/yang/pg-data.xml + # initialises Yang model with one pg-stream record + > get --filter-xpath /sample-plugin:* + # shows initialised pg-stream + + If the output of the last command is like this, everything went successful: + + .. code-block:: sh + + DATA + <sample-plugin xmlns="urn:opendaylight:params:xml:ns:yang:sample-plugin"> + <pg-streams> + <pg-stream> + <id>1</id> + <is-enabled>true</is-enabled> + </pg-stream> + </pg-streams> + </sample-plugin> + + .. tab:: PNF simulator integration project + + .. warning:: + This method of setting up the PNF simulator is not tested by the author of this guide + + You can refer to `PnP PNF Simulator wiki page <https://wiki.onap.org/display/DW/PnP+PNF+Simulator>`_ + to clone the GIT repo and start the required docker containers. We are interested in the + `sysrepo/sysrepo-netopeer2` docker container to load a simple YANG similar to vFW Packet Generator. + + Start PNF simulator docker containers. You can consider changing the netopeer image verion to image: + `sysrepo/sysrepo-netopeer2:iop` in docker-compose.yml file If you find any issues with the default image. + + .. code-block:: sh + + cd $HOME + + git clone https://github.com/onap/integration.git + + Start PNF simulator + + cd ~/integration/test/mocks/pnfsimulator + + ./simulator.sh start + + Verify that you have netopeer docker container are up and running. It will be mapped to host port 830. + + .. code-block:: sh + + docker ps -a | grep netopeer + + +Config-assign and config-deploy in CDS +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +In the following steps the CBA is published in CDS, config-assignment is done and the config is deployed to to the +Netconf server through CDS in the last step. We will use this CBA: :download:`zip <pnf-simulator-demo-cba.zip>`. +If you want to use scripts instead of Postman the CBA also contains all necessary scripts. + +.. tabs:: + + .. tab:: Scripts + + **There will be different scripts depending on your CDS installation. For running it in an IDE always use scripts with** + **-ide.sh prefix. For running in kubernetes use the scripts with -k8s.sh ending. For IDE scripts host will be localhost** + **and port will be 8081. For K8s host ip adress gets automatically detected, port is 8000.** + + **Set up CDS:** + + Unzip the downloaded CBA and go to ``/Scripts/`` directory. + + The below script will call Bootstrap API of CDS which loads the CDS default model artifacts into CDS DB. + You should get HTTP status 200 for the below command. + + .. code-block:: sh + + bash -x ./bootstrap-cds-ide.sh + # bash -x ./bootstrap-cds-k8s.sh + + Call ``bash -x ./get-cds-blueprint-models-ide.sh`` / ``bash -x ./get-cds-blueprint-models-k8s.sh`` to get all blueprint models in the CDS database. + You will see a default model "artifactName": "vFW-CDS" which was loaded by calling bootstrap. + + Push the PNF CDS blueprint model data dictionary to CDS by calling ``bash -x ./dd-microk8s-ide.sh ./dd.json`` / + ``bash -x ./dd-microk8s-k8s.sh ./dd.json``. + This will call the data dictionary endpoint of CDS. + + Check CDS database for PNF data dictionaries by entering the DB. You should see 6 rows as shown below. + + For IDE: + + .. code-block:: sh + + sudo docker exec -it mariadb_container_id mysql -uroot -psdnctl + > USE sdnctl; + > select name, data_type from RESOURCE_DICTIONARY where updated_by='Aarna service <vmuthukrishnan@aarnanetworks.com>'; + + +---------------------+-----------+ + | name | data_type | + +---------------------+-----------+ + | netconf-password | string | + | netconf-server-port | string | + | netconf-username | string | + | pnf-id | string | + | pnf-ipv4-address | string | + | stream-count | integer | + +---------------------+-----------+ + + For K8s: + + .. code-block:: sh + + ./connect-cds-mariadb-k8s.sh + + select name, data_type from RESOURCE_DICTIONARY where updated_by='Aarna service <vmuthukrishnan@aarnanetworks.com>'; + + +---------------------+-----------+ + | name | data_type | + +---------------------+-----------+ + | netconf-password | string | + | netconf-server-port | string | + | netconf-username | string | + | pnf-id | string | + | pnf-ipv4-address | string | + | stream-count | integer | + +---------------------+-----------+ + + quit + + exit + + **Enrichment:** + + Move to the main folder of the CBA with ``cd ..`` and archive all folders with ``zip -r pnf-demo.zip *``. + + .. warning:: + The provided CBA is already enriched, the following steps anyhow will enrich the CBA again to show the full workflow. + For Frankfurt release this causes an issue when the configuration is deployed later on. This happens because some parameters + get deleted when enrichment is done a second time. Skip the next steps until Deploy/Save Blueprint if you use + Frankfurt release and use the CBA as it is. In future this step should fixed and executed based on an unenriched CBA. + + Enrich the blueprint through calling the following script. Take care to provide the zip file you downloader earlier. + + .. code-block:: sh + + cd Scripts + bash -x ./enrich-and-download-cds-blueprint-ide.sh ../pnf-demo.zip + # bash -x ./enrich-and-download-cds-blueprint-k8s.sh ../pnf-demo.zip + + Go to the enriched CBA folder with ``cd /tmp/CBA/`` and unzip with ``unzip pnf-demo.zip``. + + **Deploy/Save the Blueprint into CDS database** + + Go to Scripts folder with ``cd Scripts``. + + Run the following script to save/deploy the Blueprint into the CDS database. + + .. code-block:: sh + + bash -x ./save-enriched-blueprint-ide.sh ../pnf-demo.zip + # bash -x ./save-enriched-blueprint-k8s.sh ../pnf-demo.zip + + Now you should see the new model "artifactName": "pnf_netconf" by calling ``bash -x ./get-cds-blueprint-models.sh`` + + **Config-Assign** + + The assumption is that we are using the same host to run PNF NETCONF simulator as well as CDS. You will need the + IP Adress of the Netconf server container which can be found out with + ``docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' container_id_or_name``. In the + following examples we will use 172.17.0.2. + + Day-1 configuration: + + .. code-block:: sh + + bash -x ./create-config-assing-data-ide.sh day-1 172.17.0.2 5 + # bash -x ./create-config-assing-data-k8s.sh day-1 172.17.0.2 5 + + You can verify the day-1 NETCONF RPC payload looking into CDS DB. You should see the NETCONF RPC with 5 + streams (fw_udp_1 TO fw_udp_5). Connect to the DB like mentioned above an run following statement. + + .. code-block:: sh + + MariaDB [sdnctl]> select * from TEMPLATE_RESOLUTION where resolution_key='day-1' AND artifact_name='netconfrpc'; + + <rpc xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="1"> + <edit-config> + <target> + <running/> + </target> + <config> + <sample-plugin xmlns="urn:opendaylight:params:xml:ns:yang:sample-plugin"> + <pg-streams> + <pg-stream> + <id>fw_udp_1</id> + <is-enabled>true</is-enabled> + </pg-stream> + <pg-stream> + <id>fw_udp_2</id> + <is-enabled>true</is-enabled> + </pg-stream> + <pg-stream> + <id>fw_udp_3</id> + <is-enabled>true</is-enabled> + </pg-stream> + <pg-stream> + <id>fw_udp_4</id> + <is-enabled>true</is-enabled> + </pg-stream> + <pg-stream> + <id>fw_udp_5</id> + <is-enabled>true</is-enabled> + </pg-stream> + </pg-streams> + </sample-plugin> + </config> + </edit-config> + </rpc> + + Create PNF configuration for resolution-key = day-2 (stream-count = 10). + You can verify the CURL command JSON pay load file /tmp/day-n-pnf-config.json + + .. code-block:: sh + + bash -x ./create-config-assing-data-ide.sh day-2 172.17.0.2 10 + # bash -x ./create-config-assing-data-k8s.sh day-2 172.17.0.2 10 + + You can verify the day-2 NETCONF RPC payload looking into CDS DB. You should see the NETCONF RPC with 10 + streams (fw_udp_1 TO fw_udp_10). Connect to the DB like mentioned above and run following statement. + + .. code-block:: sh + + MariaDB [sdnctl]> select * from TEMPLATE_RESOLUTION where resolution_key='day-2' AND artifact_name='netconfrpc'; + + <rpc xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="1"> + <edit-config> + <target> + <running/> + </target> + <config> + <sample-plugin xmlns="urn:opendaylight:params:xml:ns:yang:sample-plugin"> + <pg-streams> + <pg-stream> + <id>fw_udp_1</id> + <is-enabled>true</is-enabled> + </pg-stream> + <pg-stream> + <id>fw_udp_2</id> + <is-enabled>true</is-enabled> + </pg-stream> + <pg-stream> + <id>fw_udp_3</id> + <is-enabled>true</is-enabled> + </pg-stream> + <pg-stream> + <id>fw_udp_4</id> + <is-enabled>true</is-enabled> + </pg-stream> + <pg-stream> + <id>fw_udp_5</id> + <is-enabled>true</is-enabled> + </pg-stream> + <pg-stream> + <id>fw_udp_6</id> + <is-enabled>true</is-enabled> + </pg-stream> + <pg-stream> + <id>fw_udp_7</id> + <is-enabled>true</is-enabled> + </pg-stream> + <pg-stream> + <id>fw_udp_8</id> + <is-enabled>true</is-enabled> + </pg-stream> + <pg-stream> + <id>fw_udp_9</id> + <is-enabled>true</is-enabled> + </pg-stream> + <pg-stream> + <id>fw_udp_10</id> + <is-enabled>true</is-enabled> + </pg-stream> + </pg-streams> + </sample-plugin> + </config> + </edit-config> + </rpc> + + .. note:: + Till this point CDS did not interact with the PNF simulator or device. We just created the day-1 and day-2 + configurations and stored in CDS database + + **Config-Deploy:** + + Now we will make the CDS REST API calls to push the day-1 and day-2 configuration changes to the PNF simulator. + + If you run CDS in Kubernetes open a new terminal and keep it running with ``bash -x ./tail-cds-bp-log.sh``, + we can use it to review the config-deploy actions. If you run CDS in an IDE you can have a look into the IDE terminal. + + Following command will deploy day-1 configuration. + Syntax is ``# bash -x ./process-config-deploy.sh RESOLUTION_KEY PNF_IP_ADDRESS`` + + .. code-block:: sh + + bash -x ./process-config-deploy-ide.sh day-1 127.17.0.2 + # bash -x ./process-config-deploy-k8s.sh day-1 127.17.0.2 + + Go back to PNF netopeer cli console and verify if you can see 5 streams fw_udp_1 to fw_udp_5 enabled + + .. code-block:: sh + + > get --filter-xpath /sample-plugin:* + DATA + <sample-plugin xmlns="urn:opendaylight:params:xml:ns:yang:sample-plugin"> + <pg-streams> + <pg-stream> + <id>1</id> + <is-enabled>true</is-enabled> + </pg-stream> + <pg-stream> + <id>fw_udp_1</id> + <is-enabled>true</is-enabled> + </pg-stream> + <pg-stream> + <id>fw_udp_2</id> + <is-enabled>true</is-enabled> + </pg-stream> + <pg-stream> + <id>fw_udp_3</id> + <is-enabled>true</is-enabled> + </pg-stream> + <pg-stream> + <id>fw_udp_4</id> + <is-enabled>true</is-enabled> + </pg-stream> + <pg-stream> + <id>fw_udp_5</id> + <is-enabled>true</is-enabled> + </pg-stream> + </pg-streams> + </sample-plugin> + > + + The same can be done for day-2 config (follow same steps just with day-2 configuration) + + .. note:: + Through deployment we did not deploy the PNF, we just modified the PNF. The PNF could also be installed by CDS + but this is not targeted in this guide. + + .. tab:: Postman diff --git a/docs/usecases/use-cases.rst b/docs/usecases/use-cases.rst index 282f6a600..d1449b70f 100644 --- a/docs/usecases/use-cases.rst +++ b/docs/usecases/use-cases.rst @@ -9,4 +9,5 @@ Use Cases :caption: Table of Contents :maxdepth: 1 - wordpress-cnf-poc
\ No newline at end of file + wordpress-cnf-poc + pnf-simulator
\ No newline at end of file |