ci: moving to github actions

.github/workflows/main.yaml

@@ -0,0 +1,22 @@
+name: ci
+on: [ push, workflow_dispatch ]
+
+jobs:
+  build_containers:
+    if: ${{ contains(github.event.head_commit.message, 'build') }}
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+      - name: Build container
+        env:
+          DOCKER_USER: ${{ secrets.DOCKER_USER }}
+          DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
+        run: bash scripts/build_container.sh "${{ github.event.head_commit.message }}"
+
+  # build_doc:
+  #   if: ${{ contains(github.event.head_commit.message, 'doc') }}
+  #   runs-on: ubuntu-22.04
+  #   steps:
+  #     - name: Checkout repo
+  #       uses: actions/checkout@v4

scripts/build_container.sh

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+#!/usr/bin/env bash
+set -euo pipefail
+# set -x
+
+# Usage: commit message should look like 'blah blah [build <app> [append_tag]]
+# where
+#   + <app> (required) should be replaced by the app you want to build (mapcache, tileserver-gl, ...)
+#   + [append_tag] (optionnal) should be replaced by a string that'll be appended to the container image tag
+#     the script will create. If not provided, defaults to 'latest', for the container images that care.
+
+# Script will exit as soon as a command return an error code (set -e)
+# This function will then be called to provide info on which command failed
+function __handle_cmd_err() {
+    exit_code=$?
+    echo "--------------"
+    echo "$0: ERR: '$BASH_COMMAND' command was terminated with error code $exit_code, stopping now."
+}
+
+# Install the handler
+trap __handle_cmd_err ERR
+
+COMMIT_MESSAGE=$1
+REGEXP=".*\[build[[:space:]]+([^[:space:]]+)[[:space:]]*([a-zA-Z0-9_-]*)\]"
+
+# Check whether to build
+if [[ ! $COMMIT_MESSAGE =~ $REGEXP ]]; then
+  echo "$0: Commit message '$COMMIT_MESSAGE' did not trigger container build script, stopping now."
+  exit 1
+fi
+
+# The container to build
+APP=${BASH_REMATCH[1]}
+# Something to append to the tag we'll build
+APPEND_TAG=${BASH_REMATCH[2]}
+# APPEND_TAG defaults to 'latest' if not provided
+if [[ -z "$APPEND_TAG" ]]; then APPEND_TAG=latest; fi
+
+# Image name
+CONTAINER_NAME=kalisio/$APP
+CONTAINER_TAG=
+DOCKER_BUILD_OPTS=
+DOCKER_CONTEXT=build/$APP
+DOCKERFILE_OPT="-f build/$APP/dockerfile"
+
+case "$APP" in
+  thredds)
+    # Host our own since older versions seem to have vanished from dockerhub
+    # We're building from the git repo with no modifications whatsoever so
+    # no need to use APPEND_TAG
+    SRC_VERSION=4.6.20
+    CONTAINER_NAME=kalisio/thredds-docker
+    CONTAINER_TAG=$SRC_VERSION
+    DOCKER_CONTEXT=https://github.com/kalisio/thredds-docker.git#$SRC_VERSION
+    DOCKERFILE_OPT=
+    ;;
+  express-gateway)
+    SRC_VERSION=1.16.9
+    DOCKER_BUILD_OPTS="--build-arg VERSION=$SRC_VERSION"
+    CONTAINER_TAG=$SRC_VERSION-$APPEND_TAG
+    ;;
+  mapcache)
+    SRC_VERSION=1.10
+    DOCKER_BUILD_OPTS="--build-arg VERSION=$SRC_VERSION"
+    CONTAINER_TAG=$SRC_VERSION-$APPEND_TAG
+    ;;
+  mapserver)
+    SRC_VERSION=7.4
+    DOCKER_BUILD_OPTS="--build-arg VERSION=$SRC_VERSION"
+    CONTAINER_TAG=$SRC_VERSION-$APPEND_TAG
+    ;;
+  maputnik)
+    SRC_VERSION=1.6.1
+    DOCKER_BUILD_OPTS="--build-arg VERSION=$SRC_VERSION"
+    CONTAINER_TAG=$SRC_VERSION-$APPEND_TAG
+    ;;
+  tileserver-gl)
+    SRC_VERSION=v3.1.1
+    DOCKER_BUILD_OPTS="--build-arg VERSION=$SRC_VERSION"
+    CONTAINER_TAG=$SRC_VERSION-$APPEND_TAG
+    ;;
+  gdal)
+    SRC_VERSION=3.4.0
+    DOCKER_BUILD_OPTS="--build-arg VERSION=$SRC_VERSION"
+    CONTAINER_TAG=$SRC_VERSION-$APPEND_TAG
+    ;;
+  mongodb-exporter)
+    # We build this one straight from github
+    SRC_VERSION=v0.11.2
+    DOCKER_CONTEXT=https://github.com/percona/mongodb_exporter.git#$SRC_VERSION
+    DOCKERFILE_OPT=
+    CONTAINER_TAG=$SRC_VERSION
+    ;;
+  kaptain)
+    CONTAINER_TAG=latest
+    ;;
+  k8s-toolbox)
+    CONTAINER_TAG=latest
+    ;;
+  *)
+    echo "$0: '$APP' is an unknown container name, stopping now."
+    exit 1
+    ;;
+esac
+
+if [[ -z "$CONTAINER_NAME" ]]; then
+  echo "$0: Container name is empty, stopping now."
+  exit 1
+fi
+if [[ -z "$CONTAINER_TAG" ]]; then
+  echo "$0: Container tag is empty, stopping now."
+  exit 1
+fi
+
+CONTAINER_FULL_TAG=$CONTAINER_NAME:$CONTAINER_TAG
+echo "$0: Building container $CONTAINER_FULL_TAG"
+# echo "$DOCKER_PASSWORD" | docker login --username "$DOCKER_USER" --password-stdin
+docker build $DOCKER_BUILD_OPTS --force-rm $DOCKERFILE_OPT -t $CONTAINER_FULL_TAG $DOCKER_CONTEXT
+# docker push $CONTAINER_FULL_TAG
+
+echo "$0: All good."