Workflow Docker containers

1. Implemented workflow init container.
2. Implemented workflow backend container.
3. Added a placeholder for frontend module container.
4. Modifiled directory structure and POM files.
5. Added a ReadMe with sample commands to detail how to run the containers.

Change-Id: Ib110fcc104ce72ff28fce514a1475a032cc2d82b
Issue-ID: SDC-1482
Signed-off-by: priyanshu <pagarwal@amdocs.com>
Signed-off-by: vempo <vitaliy.emporopulo@amdocs.com>
Signed-off-by: priyanshu <pagarwal@amdocs.com>

4 files changed, 198 insertions, 0 deletions

diff --git a/workflow/workflow-designer-init/pom.xml b/workflow/workflow-designer-init/pom.xml
new file mode 100644
index 00000000..7f926e86
--- /dev/null
+++ b/workflow/workflow-designer-init/pom.xml
@@ -0,0 +1,45 @@
+<project
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xmlns="http://maven.apache.org/POM/4.0.0"
+        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>workflow-designer-init</artifactId>
+    <packaging>pom</packaging>
+
+    <parent>
+        <groupId>org.onap.sdc.workflow_designer</groupId>
+        <artifactId>workflow-designer-parent</artifactId>
+        <version>1.3.0-SNAPSHOT</version>
+    </parent>
+
+    <profiles>
+        <profile>
+            <id>docker</id>
+            <activation>
+                <activeByDefault>false</activeByDefault>
+            </activation>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>io.fabric8</groupId>
+                        <artifactId>docker-maven-plugin</artifactId>
+                        <configuration>
+                            <images>
+                                <image>
+                                    <name>onap/workflow-init</name>
+                                    <build>
+                                        <tags>
+                                            <tag>${project.version}</tag>
+                                        </tags>
+                                        <dockerFile>Dockerfile</dockerFile>
+                                    </build>
+                                </image>
+                            </images>
+                        </configuration>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
+    </profiles>
+</project>
\ No newline at end of file
diff --git a/workflow/workflow-designer-init/src/main/docker/Dockerfile b/workflow/workflow-designer-init/src/main/docker/Dockerfile
new file mode 100644
index 00000000..75e7efdc
--- /dev/null
+++ b/workflow/workflow-designer-init/src/main/docker/Dockerfile
@@ -0,0 +1,10 @@
+FROM alpine:3.7
+
+RUN apk add --no-cache 'python<3' py-pip && pip install cqlsh==4.0.1
+
+COPY create_workflow_db.cql .
+COPY start.sh .
+
+RUN chmod 744 start.sh
+
+ENTRYPOINT ["./start.sh"]
\ No newline at end of file
diff --git a/workflow/workflow-designer-init/src/main/docker/create_workflow_db.cql b/workflow/workflow-designer-init/src/main/docker/create_workflow_db.cql
new file mode 100644
index 00000000..c6c1f15e
--- /dev/null
+++ b/workflow/workflow-designer-init/src/main/docker/create_workflow_db.cql
@@ -0,0 +1,125 @@
+CREATE KEYSPACE IF NOT EXISTS WORKFLOW
+WITH DURABLE_WRITES = TRUE
+AND REPLICATION = {
+	'class' : 'SimpleStrategy',
+	'replication_factor' : 1
+};
+
+USE WORKFLOW;
+
+CREATE TABLE IF NOT EXISTS UNIQUE_VALUE (
+	TYPE TEXT,
+	VALUE TEXT,
+	PRIMARY KEY (( TYPE, VALUE ))
+);
+
+CREATE KEYSPACE IF NOT EXISTS ZUSAMMEN_WORKFLOW
+WITH REPLICATION = {
+	'class' : 'SimpleStrategy',
+	'replication_factor' : 1
+};
+
+USE ZUSAMMEN_WORKFLOW;
+
+CREATE TABLE IF NOT EXISTS ITEM (
+	ITEM_ID TEXT PRIMARY KEY,
+	ITEM_INFO TEXT,
+	CREATION_TIME TIMESTAMP,
+	MODIFICATION_TIME TIMESTAMP
+);
+
+CREATE TABLE IF NOT EXISTS VERSION (
+	SPACE TEXT,
+	ITEM_ID TEXT,
+	VERSION_ID TEXT,
+	BASE_VERSION_ID TEXT,
+	INFO TEXT,
+	RELATIONS TEXT,
+	CREATION_TIME TIMESTAMP,
+	MODIFICATION_TIME TIMESTAMP,
+	PRIMARY KEY (( SPACE, ITEM_ID ), VERSION_ID)
+);
+
+CREATE TABLE IF NOT EXISTS VERSION_ELEMENTS (
+	SPACE TEXT,
+	ITEM_ID TEXT,
+	VERSION_ID TEXT,
+	REVISION_ID TEXT,
+	ELEMENT_IDS MAP<TEXT, TEXT>,
+	DIRTY_ELEMENT_IDS SET<TEXT>,
+	STAGE_ELEMENT_IDS SET<TEXT>,
+	CONFLICT_ELEMENT_IDS SET<TEXT>,
+	PUBLISH_TIME TIMESTAMP,
+	USER TEXT,
+	MESSAGE TEXT,
+	PRIMARY KEY (( SPACE, ITEM_ID, VERSION_ID ), REVISION_ID)
+);
+
+CREATE TABLE IF NOT EXISTS ELEMENT_NAMESPACE (
+	ITEM_ID TEXT,
+	ELEMENT_ID TEXT,
+	NAMESPACE TEXT,
+	PRIMARY KEY (( ITEM_ID, ELEMENT_ID ))
+);
+
+CREATE TABLE IF NOT EXISTS ELEMENT (
+	SPACE TEXT,
+	ITEM_ID TEXT,
+	VERSION_ID TEXT,
+	ELEMENT_ID TEXT,
+	REVISION_ID TEXT,
+	PARENT_ID TEXT,
+	NAMESPACE TEXT,
+	INFO TEXT,
+	RELATIONS TEXT,
+	DATA BLOB,
+	SEARCHABLE_DATA BLOB,
+	VISUALIZATION BLOB,
+	SUB_ELEMENT_IDS SET<TEXT>,
+	ELEMENT_HASH TEXT,
+	PRIMARY KEY (( SPACE, ITEM_ID, VERSION_ID, ELEMENT_ID ), REVISION_ID)
+);
+
+CREATE TABLE IF NOT EXISTS ELEMENT_SYNCHRONIZATION_STATE (
+	SPACE TEXT,
+	ITEM_ID TEXT,
+	VERSION_ID TEXT,
+	ELEMENT_ID TEXT,
+	REVISION_ID TEXT,
+	PUBLISH_TIME TIMESTAMP,
+	DIRTY BOOLEAN,
+	PRIMARY KEY (( SPACE, ITEM_ID, VERSION_ID ), ELEMENT_ID, REVISION_ID)
+);
+
+CREATE TABLE IF NOT EXISTS ELEMENT_STAGE (
+	SPACE TEXT,
+	ITEM_ID TEXT,
+	VERSION_ID TEXT,
+	ELEMENT_ID TEXT,
+	PARENT_ID TEXT,
+	NAMESPACE TEXT,
+	INFO TEXT,
+	RELATIONS TEXT,
+	DATA BLOB,
+	SEARCHABLE_DATA BLOB,
+	VISUALIZATION BLOB,
+	SUB_ELEMENT_IDS SET<TEXT>,
+	ELEMENT_HASH TEXT,
+	PUBLISH_TIME TIMESTAMP,
+	ACTION TEXT,
+	CONFLICTED BOOLEAN,
+	CONFLICT_DEPENDENT_IDS SET<TEXT>,
+	PRIMARY KEY (( SPACE, ITEM_ID, VERSION_ID, ELEMENT_ID ))
+);
+
+CREATE TABLE IF NOT EXISTS VERSION_STAGE (
+	SPACE TEXT,
+	ITEM_ID TEXT,
+	VERSION_ID TEXT,
+	BASE_VERSION_ID TEXT,
+	CREATION_TIME TIMESTAMP,
+	MODIFICATION_TIME TIMESTAMP,
+	PUBLISH_TIME TIMESTAMP,
+	ACTION TEXT,
+	PRIMARY KEY (( SPACE, ITEM_ID ), VERSION_ID)
+);
\ No newline at end of file
diff --git a/workflow/workflow-designer-init/src/main/docker/start.sh b/workflow/workflow-designer-init/src/main/docker/start.sh
new file mode 100644
index 00000000..ac89d6c0
--- /dev/null
+++ b/workflow/workflow-designer-init/src/main/docker/start.sh
@@ -0,0 +1,18 @@
+#!/bin/sh
+
+if [[ -z "${CS_USER}" ]]; then
+	echo "CS_USER environment variable must be set"
+	exit 1
+fi
+
+if [[ -z "${CS_PASSWORD}" ]]; then
+	echo "CS_PASSWORD environment variable must be set"
+	exit 1
+fi
+
+if [[ -z "${CS_HOST}" ]]; then
+	echo "CS_HOST environment variable must be set"
+	exit 1
+fi
+
+cqlsh -u ${CS_USER} -p ${CS_PASSWORD} -f /create_workflow_db.cql ${CS_HOST} ${CS_PORT}