Improve Linux dev setup (#2720)

Author: iamluc

docker-compose.linux.override.yml

@@ -0,0 +1,27 @@
+version: '3.6'
+
+# For Linux users.
+# Duplicate this file with the name "docker-compose.override.yml",
+# or create a symlink (ln -s docker-compose.linux.override.yml docker-compose.override.yml).
+# Adapt the uid/gid of the tmpfs mounts if needed.
+
+x-aliases:
+  - &linux_php_service
+    # Fix owner/permissions on Linux
+    entrypoint: /home/circleci/app/dockerfiles/dev/linux_entrypoint.sh
+    user: "root:root"
+    tmpfs: [ '/home/circleci/app/tmp:uid=1000,gid=1000,exec', '/home/circleci/app/tests/vendor:uid=1000,gid=1000,exec' ]
+
+services:
+  # --- Alpine ---
+  '8.0-alpine': { <<: *linux_php_service }
+  # --- Buster ---
+  '7.0-buster': { <<: *linux_php_service }
+  '7.1-buster': { <<: *linux_php_service }
+  '7.2-buster': { <<: *linux_php_service }
+  '7.3-buster': { <<: *linux_php_service }
+  '7.4-buster': { <<: *linux_php_service }
+  '8.0-buster': { <<: *linux_php_service }
+  '8.1-buster': { <<: *linux_php_service }
+  '8.2-buster': { <<: *linux_php_service }
+  '8.3-buster': { <<: *linux_php_service }

dockerfiles/dev/linux_entrypoint.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+set -euo pipefail
+# set -x
+
+WORKING_DIR=$(pwd)
+USER_ID=$(stat --format "%u" "${WORKING_DIR}")
+GROUP_ID=$(stat --format "%g" "${WORKING_DIR}")
+
+if grep alpine /etc/os-release >& /dev/null; then
+    apk --no-cache add shadow >& /dev/null
+fi
+
+usermod -u "${USER_ID}" circleci
+groupmod -g "${GROUP_ID}" circleci
+
+# It takes a few seconds, so let's do it in a sub-process to let the container start fast
+chown -R circleci:circleci /opt &
+
+if [[ ! -f .tmp/gosu ]]; then
+    mkdir -p .tmp
+    curl -Lo .tmp/gosu "https://github.com/tianon/gosu/releases/download/1.17/gosu-amd64"
+    chmod +x .tmp/gosu
+    chown circleci:circleci -R .tmp
+fi
+
+exec .tmp/gosu circleci "${@:-bash}"