chore: use a script to prepare integration tests in CI jobs

The repeating element appears several times in the CircleCI jobs. Currently it is extracted out in the OpenShift 3 job setup and it can be reused for all integration tests.

Author: ivanstanev

.circleci/config.yml

@@ -184,10 +184,7 @@ jobs:
       - run:
           name: Integration tests
           command: |
-            docker login --username ${DOCKERHUB_USER} --password ${DOCKERHUB_PASSWORD} &&
-            export IMAGE_TAG=$([[ "$CIRCLE_BRANCH" == "staging" ]] && echo "staging-candidate" || echo "discardable") &&
-            export KUBERNETES_MONITOR_IMAGE_NAME_AND_TAG=snyk/kubernetes-monitor:${IMAGE_TAG}-${CIRCLE_SHA1} &&
-            docker pull ${KUBERNETES_MONITOR_IMAGE_NAME_AND_TAG} &&
+            export KUBERNETES_MONITOR_IMAGE_NAME_AND_TAG=$(./scripts/circleci-jobs/setup-integration-tests.py)
             npm run test:integration
       - run:
           name: Notify Slack on failure
@@ -212,10 +209,7 @@ jobs:
       - run:
           name: Integration tests EKS
           command: |
-            docker login --username ${DOCKERHUB_USER} --password ${DOCKERHUB_PASSWORD} &&
-            export IMAGE_TAG=$([[ "$CIRCLE_BRANCH" == "staging" ]] && echo "staging-candidate" || echo "discardable") &&
-            export KUBERNETES_MONITOR_IMAGE_NAME_AND_TAG=snyk/kubernetes-monitor:${IMAGE_TAG}-${CIRCLE_SHA1} &&
-            docker pull ${KUBERNETES_MONITOR_IMAGE_NAME_AND_TAG} &&
+            export KUBERNETES_MONITOR_IMAGE_NAME_AND_TAG=$(./scripts/circleci-jobs/setup-integration-tests.py)
             .circleci/do-exclusively --branch staging --job ${CIRCLE_JOB} npm run test:integration:eks
       - run:
           name: Notify Slack on failure
@@ -240,7 +234,7 @@ jobs:
       - run:
           name: Integration tests OpenShift 3
           command: |
-            export KUBERNETES_MONITOR_IMAGE_NAME_AND_TAG=$(./scripts/circleci-jobs/setup-openshift3-integration-tests.py)
+            export KUBERNETES_MONITOR_IMAGE_NAME_AND_TAG=$(./scripts/circleci-jobs/setup-integration-tests.py)
             npm run test:integration:openshift3
       - run:
           name: Notify Slack on failure
@@ -264,10 +258,7 @@ jobs:
       - run:
           name: Integration tests OpenShift 4
           command: |
-            docker login --username ${DOCKERHUB_USER} --password ${DOCKERHUB_PASSWORD} &&
-            export IMAGE_TAG=$([[ "$CIRCLE_BRANCH" == "staging" ]] && echo "staging-candidate" || echo "discardable") &&
-            export KUBERNETES_MONITOR_IMAGE_NAME_AND_TAG=snyk/kubernetes-monitor:${IMAGE_TAG}-${CIRCLE_SHA1} &&
-            docker pull ${KUBERNETES_MONITOR_IMAGE_NAME_AND_TAG} &&
+            export KUBERNETES_MONITOR_IMAGE_NAME_AND_TAG=$(./scripts/circleci-jobs/setup-integration-tests.py)
             .circleci/do-exclusively --branch staging --job ${CIRCLE_JOB} npm run test:integration:openshift4
       - run:
           name: Delete Operator from Quay