Resolve "Add docker image"

Closes #97 (closed)

.gitlab-ci.yml

@@ -4,6 +4,12 @@ image: docker.km3net.de/base/python:3
 # only cache local items.
 variables:
   PIP_CACHE_DIR: "$CI_PROJECT_DIR/.cache/pip"
+  DOCKER_HOST: tcp://docker:2375
+  DOCKER_DRIVER: overlay2
+  CONTAINER_TEST_IMAGE: docker.km3net.de/test/km3io:$CI_COMMIT_REF_SLUG
+  CONTAINER_RELEASE_IMAGE: docker.km3net.de/km3io:$CI_COMMIT_TAG
+  CONTAINER_LATEST_IMAGE: docker.km3net.de/km3io:latest
+  SINGULARITY_RELEASE_IMAGE: km3io_${CI_COMMIT_TAG}.sif
 
 cache:
   paths:
@@ -14,6 +20,8 @@ stages:
   - test
   - coverage
   - doc
+  - docker
+  - singularity
   - release
 
 .virtualenv_template: &virtualenv_definition |
@@ -103,6 +111,20 @@ pages:
         - master
 
 
+docker:
+  image: docker:stable
+  services:
+    - docker:dind
+  stage: docker
+  script:
+    - docker build --pull -t $CONTAINER_TEST_IMAGE .
+    - docker push $CONTAINER_TEST_IMAGE
+  tags:
+    - docker
+  only:
+    - tags
+
+
 pypi:
     image: docker.km3net.de/base/python:3
     stage: release
@@ -127,3 +149,31 @@ cc-lyon:
         - tags
         - master
     allow_failure: true
+
+release-docker:
+  image: docker:stable
+  services:
+    - docker:dind
+  stage: release
+  script:
+    - docker pull $CONTAINER_TEST_IMAGE
+    - docker tag $CONTAINER_TEST_IMAGE $CONTAINER_RELEASE_IMAGE
+    - docker tag $CONTAINER_TEST_IMAGE $CONTAINER_LATEST_IMAGE
+    - docker push $CONTAINER_RELEASE_IMAGE
+    - docker push $CONTAINER_LATEST_IMAGE
+  tags:
+    - docker
+  only:
+    - tags
+
+release-singularity:
+  image: docker.km3net.de/base/singularity:3.6.2
+  stage: release
+  script:
+    - singularity build $SINGULARITY_RELEASE_IMAGE docker://$CONTAINER_TEST_IMAGE
+    - du -sh $SINGULARITY_RELEASE_IMAGE
+    - mkdir -p ~/.ssh && ssh-keyscan -H -t rsa $KM3NET_SFTP_HOST  >> ~/.ssh/known_hosts
+    - apt install -q lftp
+    - lftp -u $KM3NET_SFTP_USER,$KM3NET_SFTP_PASSWORD sftp://$KM3NET_SFTP_HOST -e "set ssl:verify-certificate no; cd singularity/; put $SINGULARITY_RELEASE_IMAGE; bye"
+  only:
+    - tags