Merge current state of changes

.gitignore

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+__pycache__
+.idea
+test.xml
+*.swp
+env

.gitlab-ci.yml

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+# Copyright © 2021 Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may not
+# use this file except in compliance with the License. You may obtain a copy of
+# the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations under
+# the License.
+
+stages:
+  - test
+  - build
+  - deploy
+
+variables:
+  LC_ALL: "C.UTF-8"
+  LANG: "C.UTF-8"
+
+cache:
+  key: "$CI_COMMIT_REF_SLUG"
+  paths:
+    - .pip
+
+.install_requirements: &install_requirements
+  - DEBIAN_FRONTEND=noninteractive apt-get update && apt-get upgrade -y
+  - DEBIAN_FRONTEND=noninteractive apt-get install python3 python3-pip python3-sqlalchemy -y
+  - pip3 install --cache-dir=.pip -r requirements.txt
+
+verify_python:
+  image: python:3.6.9-buster
+  stage: test
+  tags:
+    - group
+  before_script:
+    - *install_requirements
+  script:
+    - python3 -m compileall .
+
+python_pycodestyle:
+  image: python:3.6.9-buster
+  stage: test
+  # TODO: fix code to fit with PEP8 guidelines
+  allow_failure: true
+  tags:
+    - group
+  before_script:
+    - *install_requirements
+    - pip3 install --cache-dir=.pip pycodestyle
+  script:
+    - shopt -s globstar && pycodestyle {,**/}*.py
+
+python_pylint:
+  image: python:3.6.9-buster
+  stage: test
+  # TODO: fix code to get a better pylint rating
+  allow_failure: true
+  tags:
+    - group
+  before_script:
+    - *install_requirements
+    - pip3 install --cache-dir=.pip pylint
+  script:
+    - shopt -s globstar && pylint --fail-under=8 {,**/}*.py
+
+python_black:
+  image: python:3.6.9-buster
+  stage: test
+  tags:
+    - group
+  before_script:
+    - *install_requirements
+    - pip3 install --cache-dir=.pip black==21.4b2
+  script:
+    - black -l 79 --check .
+
+run_tests:
+  image: python:3.6.9-buster
+  stage: test
+  tags:
+    - group
+  before_script:
+    - *install_requirements
+  script:
+    - python3 test_all.py
+
+verify_json:
+  stage: test
+  image: registry.gitlab.com/pipeline-components/jsonlint:0.12.0
+  cache: {}
+  script:
+    - |
+      find . -not -path './.git/*' -name '*.json' -type f -print0 |
+      parallel --will-cite -k -0 -n1 jsonlint -q
+
+dockerbuild_latest:
+  image: docker/compose:1.29.2
+  stage: build
+  cache: {}
+  tags:
+    - group
+  script:
+    - docker build -t quakeledger:latest -f metadata/Dockerfile .
+
+    # push latest image to Docker Hub
+    - docker tag quakeledger:latest gfzriesgos/quakeledger:latest
+    - docker login -u ${DOCKERHUB_USER} -p ${DOCKERHUB_PASSWORD}
+    - docker push gfzriesgos/quakeledger:latest
+
+    # push latest image to GitLab Container Registry
+    - docker tag quakeledger:latest git.gfz-potsdam.de:5000/id2/riesgos/quakeledger:latest
+    - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
+    - docker push git.gfz-potsdam.de:5000/id2/riesgos/quakeledger:latest
+
+dockerbuild_tagged:
+  image: docker/compose:1.29.2
+  stage: build
+  cache: {}
+  tags:
+    - group
+  rules:
+    - if: $CI_COMMIT_TAG
+  script:
+    - sed -i -e "s@:latest@:${CI_COMMIT_TAG}@g" metadata/quakeledger.json
+    - docker build -t quakeledger:${CI_COMMIT_TAG} -f metadata/Dockerfile .
+
+    # push image to Docker Hub
+    - docker tag quakeledger:${CI_COMMIT_TAG} gfzriesgos/quakeledger:${CI_COMMIT_TAG}
+    - docker login -u ${DOCKERHUB_USER} -p ${DOCKERHUB_PASSWORD}
+    - docker push gfzriesgos/quakeledger:${CI_COMMIT_TAG}
+
+    # push image to GitLab Container Registry
+    - docker tag quakeledger:${CI_COMMIT_TAG} git.gfz-potsdam.de:5000/id2/riesgos/quakeledger:${CI_COMMIT_TAG}
+    - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
+    - docker push git.gfz-potsdam.de:5000/id2/riesgos/quakeledger:${CI_COMMIT_TAG}
+
+deploy_latest:
+  stage: deploy
+  variables:
+    DEPLOY_LATEST_IMAGES: "true"
+  trigger:
+    project: id2/riesgos/gfz-riesgos-wps-repository
+    branch: master
+    strategy: depend