feat(docker): restore failed Compose updates and retain recent releases

src/test/docker-update-harness.sh

@@ -15,15 +15,28 @@ docker() {
  case "$1 ${2:-}" in
   'inspect --format')
    if [ "${@: -1}" = epicnext-cms-app ]; then [ "$SCENARIO" = ci-active ] && echo true; return 0; fi
+   if [ "${@: -1}" = previous123 ] || [ -f "$TEST_DIR/restored" ]; then echo sha256:old; return 0; fi
    if [ "$SCENARIO" = wrong-image ]; then echo sha256:old; else echo sha256:new; fi ;;
   'image inspect')
+   if [[ "$*" = *org.opencontainers* ]] && [[ "$*" = *sha256:old* ]]; then printf 'b%.0s' {1..40}; echo; return 0; fi
    if [[ "$*" = *org.opencontainers* ]]; then echo "$TEST_SHA"; else echo sha256:new; fi ;;
   'compose config') return 0 ;;
   'compose build') [ "$SCENARIO" != build-failure ] ;;
-  'compose up') [ "$SCENARIO" != recreate-failure ] ;;
-  'compose ps') echo container123 ;;
+  'compose up')
+   if [[ "$CMS_RELEASE" = rollback-* ]]; then
+     [ "$SCENARIO" != rollback-failure ] || return 1
+     touch "$TEST_DIR/restored"; return 0
+   fi
+   touch "$TEST_DIR/cutover"
+   [ "$SCENARIO" != recreate-failure ] ;;
+  'compose ps')
+   if [ -f "$TEST_DIR/cutover" ]; then echo container123
+   elif [ "$SCENARIO" != first-failure ]; then echo previous123; fi ;;
   'run --rm') [ "$SCENARIO" != migration-failure ] ;;
+  'ps -aq') if [ "$SCENARIO" = retained-in-use ]; then echo other-container; fi ;;
   'exec container123')
+   if [ -f "$TEST_DIR/restored" ]; then return 0; fi
+   if [ "$SCENARIO" = first-failure ] || [ "$SCENARIO" = rollback-failure ]; then return 1; fi
    if [ "$SCENARIO" = wrong-release ]; then return 1; fi
    if [ "$SCENARIO" = wrong-public ] && [[ "$*" = *example.test* ]]; then return 1; fi ;;
   *) return 0 ;;