refactor: move docker-related commands from tags plugin into scheduler-docker-local plugin

plugins/scheduler-docker-local/scheduler-tags-create

@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
+source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"
+
+scheduler-docker-local-scheduler-tags-create() {
+  declare desc="scheduler-docker-local scheduler-stop plugin trigger"
+  declare trigger="scheduler-docker-local scheduler-stop"
+  declare DOKKU_SCHEDULER="$1" APP="$2" SOURCE_IMAGE="$3" TARGET_IMAGE="$4"
+
+  if [[ "$DOKKU_SCHEDULER" != "docker-local" ]]; then
+    return
+  fi
+
+  local TAG_OPTS=""
+  [[ $(is_tag_force_available) ]] && TAG_OPTS="-f"
+  # shellcheck disable=SC2086
+  docker tag $TAG_OPTS "$SOURCE_IMAGE" "$TARGET_IMAGE"
+}
+
+is_tag_force_available() {
+  CLIENT_VERSION_STRING="$(get_docker_version)"
+  MAJOR_VERSION=$(echo "$CLIENT_VERSION_STRING" | awk '{split($0,a,"."); print a[1]}')
+  MINOR_VERSION=$(echo "$CLIENT_VERSION_STRING" | awk '{split($0,a,"."); print a[2]}')
+  PATCH_VERSION=$(echo "$CLIENT_VERSION_STRING" | awk '{split($0,a,"."); print a[3]}')
+
+  # docker tag -f was dropped in 1.12.0
+  if [[ "$MAJOR_VERSION" -gt 1 ]]; then
+    return 1
+  elif [[ "$MAJOR_VERSION" -eq 1 ]] && [[ "$MINOR_VERSION" -ge 12 ]]; then
+    return 1
+  else
+    return 0
+  fi
+}
+
+scheduler-docker-local-scheduler-tags-create "$@"

plugins/scheduler-docker-local/scheduler-tags-destroy

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
+source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"
+
+scheduler-docker-local-scheduler-tags-destroy() {
+  declare desc="scheduler-docker-local scheduler-stop plugin trigger"
+  declare trigger="scheduler-docker-local scheduler-stop"
+  declare DOKKU_SCHEDULER="$1" APP="$2" IMAGE_REPO="$3" IMAGE_TAG="$4"
+
+  if [[ "$DOKKU_SCHEDULER" != "docker-local" ]]; then
+    return
+  fi
+
+  docker rmi "$IMAGE_REPO:$IMAGE_TAG"
+}
+
+scheduler-docker-local-scheduler-tags-destroy "$@"