feat: Support docker compose CLI (getsentry#1116)

Check if docker compose v2, CLI, is available and get semantic version
from it, or fallback to get semantic version out of docker-compose v1
when checking minimum requirements during install.sh script

Fixes getsentry#962

.github/workflows/test.yml

@@ -26,17 +26,28 @@ jobs:
   integration-test:
     runs-on: ubuntu-20.04
     name: "integration test"
+    strategy:
+      max-parallel: 1
+      fail-fast: false
+      matrix:
+        include:
+          - compose_version: '1.28.0'
+            compose_path: '/usr/local/bin'
+          - compose_version: 'v2.0.1'
+            compose_path: '/usr/local/lib/docker/cli-plugins'
     steps:
       - name: Checkout
         uses: actions/checkout@v2
-  
-      - name: Pin docker-compose
+
+      - name: Get Compose
         run: |
-          COMPOSE_PATH=/usr/local/bin/docker-compose
-          source ./install/_min-requirements.sh
-          sudo rm $COMPOSE_PATH
-          sudo curl -L https://github.com/docker/compose/releases/download/${MIN_COMPOSE_VERSION}/docker-compose-`uname -s`-`uname -m` -o $COMPOSE_PATH
-          sudo chmod +x $COMPOSE_PATH
+          # Always remove `docker compose` support as that's the newer version
+          # and comes installed by default nowadays.
+          sudo rm -f "/usr/local/lib/docker/cli-plugins/docker-compose"
+          sudo rm -f "${{ matrix.compose_path }}/docker-compose"
+          sudo mkdir -p "${{ matrix.compose_path }}"
+          sudo curl -L https://github.com/docker/compose/releases/download/${{ matrix.compose_version }}/docker-compose-`uname -s`-`uname -m` -o "${{ matrix.compose_path }}/docker-compose"
+          sudo chmod +x "${{ matrix.compose_path }}/docker-compose"
 
       - name: Integration Test
         run: |

_integration-test/run.sh

@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-set -e
+set -ex
 
 source "$(dirname $0)/../install/_lib.sh"
 
@@ -118,7 +118,7 @@ done
 echo "${_endgroup}"
 
 echo "${_group}Ensure cleanup crons are working ..."
-$dc ps | grep -q -- "-cleanup_.\+[[:space:]]\+Up[[:space:]]\+"
+$dc ps | grep -q -E "\-cleanup\s+running\s+|\-cleanup_.+\s+Up\s+"
 echo "${_endgroup}"
 
 echo "${_group}Test custom CAs work ..."

docker-compose.yml

@@ -93,7 +93,7 @@ services:
   smtp:
     <<: *restart_policy
     image: tianon/exim4
-    hostname: ${SENTRY_MAIL_HOST:-}
+    hostname: ${SENTRY_MAIL_HOST:-''}
     volumes:
       - "sentry-smtp:/var/spool/exim4"
       - "sentry-smtp-log:/var/log/exim4"

install/_lib.sh

@@ -25,7 +25,8 @@ else
   _endgroup=""
 fi
 
-dc="docker-compose --ansi never"
+dc_base="$(docker compose version >/dev/null && echo 'docker compose' || echo 'docker-compose')"
+dc="$dc_base --ansi never"
 dcr="$dc run --rm"
 
 # A couple of the config files are referenced from other subscripts, so they

install/check-minimum-requirements.sh

@@ -3,8 +3,13 @@ echo "${_group}Checking minimum requirements ..."
 source "$(dirname $0)/_min-requirements.sh"
 
 DOCKER_VERSION=$(docker version --format '{{.Server.Version}}')
-# Do NOT use $dc instead of `docker-compose` below as older versions don't support certain options and fail
-COMPOSE_VERSION=$(docker-compose --version | sed 's/docker-compose version \(.\{1,\}\),.*/\1/')
+# Get semantic version of Docker Compose v2
+if docker compose version >/dev/null; then
+  COMPOSE_VERSION=$(docker compose version --short | sed 's/v\{0,1\}\(.\{1,\}\)/\1/')
+else
+  # Do NOT use $dc instead of `docker-compose` below as older versions don't support certain options and fail
+  COMPOSE_VERSION=$(docker-compose --version | sed 's/docker-compose version \(.\{1,\}\),.*/\1/')
+fi
 RAM_AVAILABLE_IN_DOCKER=$(docker run --rm busybox free -m 2>/dev/null | awk '/Mem/ {print $2}');
 CPU_AVAILABLE_IN_DOCKER=$(docker run --rm busybox nproc --all);
 

install/wrap-up.sh

@@ -18,7 +18,7 @@ else
   echo ""
   echo "You're all done! Run the following command to get Sentry running:"
   echo ""
-  echo "  docker-compose up -d"
+  echo "  $dc_base up -d"
   echo ""
   echo "-----------------------------------------------------------------"
   echo ""