feature: add the yamllint tool in circleci config

1. add the yamllint tool
2. repair the format of template yaml file of dfget/dfdaemon

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
       - 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: |

docs/config/dfdaemon_config_template.yml

@@ -5,38 +5,38 @@
 registry_mirror:
     # url for the registry mirror
     # Remote url for the registry mirror, default is https://index.docker.io
-　　remote: https://index.docker.io
+   remote: https://index.docker.io
     # whether to ignore https certificate errors
-　　insecure: false
+   insecure: false
     # optional certificates if the remote server uses self-signed certificates
-　　certs: []
+   certs: []
 
 # Proxies is the list of rules for the transparent proxy. If no rules
 # are provided, all requests will be proxied directly. Request will be
 # proxied with the first matching rule.
 proxies:
     # proxy all http image layer download requests with dfget
-　　- regx: blobs/sha256.*
+   - regx: blobs/sha256.*
     # change http requests to some-registry to https and proxy them with dfget
-　　- regx: some-registry/
-　　　　use_https: true
+   - regx: some-registry/
+     use_https: true
     # proxy requests directly, without dfget
-　　- regx: no-proxy-reg
-　　　　direct: true
+   - regx: no-proxy-reg
+     direct: true
 
 # HijackHTTPS is the list of hosts whose https requests should be hijacked
 # by dfdaemon. Dfdaemon will be able to proxy requests from them with dfget
 # if the url matches the proxy rules. The first matched rule will be used.
 hijack_https:
     # key pair used to hijack https requests
-　　cert: df.crt
-　　key: df.key
-　　hosts:
-　　　　- regx: mirror.aliyuncs.com:443  # regexp to match request hosts
-       # whether to ignore https certificate errors
-　　　　insecure: false
-       # optional certificates if the host uses self-signed certificates
-　　　　certs: []
+   cert: df.crt
+   key: df.key
+   hosts:
+      - regx: mirror.aliyuncs.com:443  # regexp to match request hosts
+        # whether to ignore https certificate errors
+        insecure: false
+        # optional certificates if the host uses self-signed certificates
+        certs: []
 
 # dfget properties
 # node: specify the addresses

docs/config/dfget_config_template.yml

@@ -4,8 +4,8 @@
 # Nodes specify supernodes.
 # Where the host is necessary, the port(default: 8002) and the weight(default:1) are optional.
 nodes:
-  　- 127.0.0.1=1
-  　- 10.10.10.1:8002=2
+   - 127.0.0.1=1
+   - 10.10.10.1:8002=2
 
 # LocalLimit rate limit about a single download task, format: G(B)/g/M(B)/m/K(B)/k/B
 # pure number will also be parsed as Byte.