Poster now supports build-time IMAGE_TAG (#46)

* - Supports TRAVIS_TAG

- Poster image '1.0.0' now sets Image-Tag header to '1.0.0'
- Removed concept of 'stable' images - not it's just 'latest' and '<tag>'

* - Poster now echos some stuff (importantly the IMAGE_TAG)

Co-authored-by: Alan Christie <alan.christie@matildapeak.com>

.travis.yml

@@ -31,11 +31,6 @@ stages:
   if: |
     tag IS present \
     AND env(PUBLISH_IMAGES) = yes
-- name: publish stable
-  if: |
-    tag IS present \
-    AND tag =~ ^([0-9]+\.){1,2}[0-9]+$ \
-    AND env(PUBLISH_IMAGES) = yes
 
 jobs:
   include:
@@ -64,26 +59,12 @@ jobs:
   - stage: publish tag
     name: Publish Tagged Image
     script:
-    # Build and push the pipelines-rdkit image and its sd-poster
+    # Build and push the pipelines-rdkit image and its sd-poster.
+    # The poster will have its IMAGE_TAG set to TRAVIS_TAG
     - docker build -t informaticsmatters/rdkit_pipelines:${TRAVIS_TAG} -f Dockerfile-rdkit .
-    - docker build -t squonk/rdkit-pipelines-sdposter:${TRAVIS_TAG} -f Dockerfile-sdposter .
+    - docker build -t squonk/rdkit-pipelines-sdposter:${TRAVIS_TAG} -f Dockerfile-sdposter --build-arg image_tag=${TRAVIS_TAG} .
     - if [ -n "$DOCKER_PASSWORD" ]; then
         docker login -u="$DOCKER_USERNAME" -p="$DOCKER_PASSWORD";
         docker push informaticsmatters/rdkit_pipelines:${TRAVIS_TAG};
         docker push squonk/rdkit-pipelines-sdposter:${TRAVIS_TAG};
       fi
-
-  - stage: publish stable
-    name: Publish Stable Image
-    script:
-    # Pull the corresponding pipelines-rdkit image tag
-    # and push it again as 'stable'
-    - if [ -n "$DOCKER_PASSWORD" ]; then
-        docker login -u="$DOCKER_USERNAME" -p="$DOCKER_PASSWORD";
-        docker pull informaticsmatters/rdkit_pipelines:${TRAVIS_TAG};
-        docker pull squonk/rdkit-pipelines-sdposter:${TRAVIS_TAG};
-        docker tag informaticsmatters/rdkit_pipelines:${TRAVIS_TAG} informaticsmatters/rdkit_pipelines:stable;
-        docker tag squonk/rdkit-pipelines-sdposter:${TRAVIS_TAG} squonk/rdkit-pipelines-sdposter:stable;
-        docker push informaticsmatters/rdkit_pipelines:stable;
-        docker push squonk/rdkit-pipelines-sdposter:stable;
-      fi

Dockerfile-sdposter

@@ -1,6 +1,15 @@
 FROM centos:7
 MAINTAINER Tim Dudgeon <tdudgeon@informaticsmatters.com>
 
+# The image tag for the pipelines we're expected to post.
+# By default this is 'latest' but the build environment can
+# use a built-arg to over-ride this.
+# So, a poster container image built for Git tag '1.0.0' would be expected
+# to have its IMAGE_TAG environment variable set to '1.0.0' and therefore
+# running poster:1.0.0 would inject pipelines for container image '1.0.0'
+ARG image_tag=latest
+ENV IMAGE_TAG=$image_tag
+
 # An image to populate the Core with the contents of the
 # Service Descriptors located in SD_SRC.
 

post-service-descriptors.sh

@@ -7,14 +7,21 @@
 set -e
 
 POST=${1:-http://coreservices:8080/coreservices/rest/v1/services}
-BASE_D='docker://github.com/InformaticsMatters/pipelines'
-BASE_N='nextflow://github.com/InformaticsMatters/pipelines'
+BASE_D=docker://github.com/InformaticsMatters/pipelines
+BASE_N=nextflow://github.com/InformaticsMatters/pipelines
+IMAGE_TAG=${IMAGE_TAG:-}
 CT_DJ="application/x-squonk-service-descriptor-docker+json"
 CT_DY="application/x-squonk-service-descriptor-docker+yaml"
 CT_MM="multipart/mixed"
 
+echo BASE_D="${BASE_D}"
+echo BASE_N="${BASE_N}"
+echo IMAGE_TAG="${IMAGE_TAG}"
 
-for d in 'src/python/pipelines/dmpk' 'src/python/pipelines/docking' 'src/python/pipelines/rdkit' 'src/python/pipelines/dimorphite'
+for d in 'src/python/pipelines/dmpk' \
+         'src/python/pipelines/docking' \
+         'src/python/pipelines/rdkit' \
+         'src/python/pipelines/dimorphite'
 do
     for file in $d/*.dsd.yml
     do
@@ -23,12 +30,14 @@ do
          -T $file\
          -H "Content-Type: $CT_DY"\
          -H "Base-URL: $BASE_D"\
+         -H "Image-Tag: $IMAGE_TAG"\
          $POST
          echo ""
     done
 done
 
-for d in 'src/nextflow/docking' 'src/nextflow/rdkit'
+for d in 'src/nextflow/docking' \
+         'src/nextflow/rdkit'
 do
     for file in $d/*.nsd.yml
     do