ci: vary /tmp/env

Author: Sjors

ci/test/02_run_container.sh

@@ -12,9 +12,9 @@ set -ex
 if [ -z "$DANGER_RUN_CI_ON_HOST" ]; then
   # Export all env vars to avoid missing some.
   # Though, exclude those with newlines to avoid parsing problems.
-  python3 -c 'import os; [print(f"{key}={value}") for key, value in os.environ.items() if "\n" not in value and "HOME" != key and "PATH" != key and "USER" != key]' | tee /tmp/env
+  python3 -c 'import os; [print(f"{key}={value}") for key, value in os.environ.items() if "\n" not in value and "HOME" != key and "PATH" != key and "USER" != key]' | tee "/tmp/env-$USER-$CONTAINER_NAME"
   # System-dependent env vars must be kept as is. So read them from the container.
-  docker run --rm "${CI_IMAGE_NAME_TAG}" bash -c "env | grep --extended-regexp '^(HOME|PATH|USER)='" | tee --append /tmp/env
+  docker run --rm "${CI_IMAGE_NAME_TAG}" bash -c "env | grep --extended-regexp '^(HOME|PATH|USER)='" | tee --append "/tmp/env-$USER-$CONTAINER_NAME"
   echo "Creating $CI_IMAGE_NAME_TAG container to run in"
   DOCKER_BUILDKIT=1 docker build \
       --file "${BASE_READ_ONLY_DIR}/ci/test_imagefile" \
@@ -44,6 +44,8 @@ if [ -z "$DANGER_RUN_CI_ON_HOST" ]; then
   # When detecting podman-docker, `--external` should be added.
   docker image prune --force --filter "label=$CI_IMAGE_LABEL"
 
+  # Append $USER to /tmp/env to support multi-user systems and $CONTAINER_NAME
+  # to allow support starting multiple runs simultaneously by the same user.
   # shellcheck disable=SC2086
   CI_CONTAINER_ID=$(docker run --cap-add LINUX_IMMUTABLE $CI_CONTAINER_CAP --rm --interactive --detach --tty \
                   --mount "type=bind,src=$BASE_READ_ONLY_DIR,dst=$BASE_READ_ONLY_DIR,readonly" \
@@ -52,7 +54,7 @@ if [ -z "$DANGER_RUN_CI_ON_HOST" ]; then
                   --mount "type=volume,src=${CONTAINER_NAME}_depends_sources,dst=$DEPENDS_DIR/sources" \
                   --mount "type=volume,src=${CONTAINER_NAME}_depends_SDKs_android,dst=$DEPENDS_DIR/SDKs/android" \
                   --mount "type=volume,src=${CONTAINER_NAME}_previous_releases,dst=$PREVIOUS_RELEASES_DIR" \
-                  --env-file /tmp/env \
+                  --env-file /tmp/env-$USER-$CONTAINER_NAME \
                   --name "$CONTAINER_NAME" \
                   "$CONTAINER_NAME")
   export CI_CONTAINER_ID