feature: add the yamllint tool

Signed-off-by: fengzixu <[email protected]>

.circleci/config.yml

@@ -10,7 +10,7 @@ jobs:
     docker:
       # this image is built from Dockerfile
       # https://github.com/pouchcontainer/pouchlinter/blob/master/Dockerfile
-      - image: pouchcontainer/pouchlinter:v0.2.4
+      - image: dragonflyoss/linter:v0.2.7
     working_directory: /go/src/github.com/dragonflyoss/Dragonfly
     steps:
       - checkout
@@ -36,11 +36,15 @@ jobs:
       - run:
           name: use opensource tool client9/misspell to correct commonly misspelled English words
           command: |
-            find  ./* -name  "*" | xargs misspell -error
+            find  . -name  "*" | xargs misspell -error
+      - run:
+          name: use yamllint tool to check the format of all yaml files
+          command: |
+            find . -name "*.yml" | xargs yamllint -f colored
       - run:
           name: use ShellCheck (https://github.com/koalaman/shellcheck) to check the validateness of shell scripts in pouch repo
           command: |
-            find ./ -name "*.sh" | xargs shellcheck
+            find . -name "*.sh" | xargs shellcheck
       - run:
           name: validate go mod files
           command: |