docs(imagebuilder): improve the documentation

Author: duanhongyi

.drone/drone.yml

@@ -151,9 +151,9 @@ steps:
   image: docker.io/drycc/python-dev
   commands:
   - IMAGE_TAG=$([ ! -z $DRONE_TAG ] && echo ${DRONE_TAG:1} || echo \"canary\")
-  - sed -i "s/image_tag:\ \"canary\"/image_tag:\ $IMAGE_TAG/g" charts/buildparker/values.yaml
-  - helm package charts/buildparker --version ${DRONE_TAG:-v1.0.0}
-  - curl -u $CHARTMUSEUM_USERNAME:$CHARTMUSEUM_PASSWORD -F chart=@buildparker-${DRONE_TAG:-v1.0.0}.tgz "$CHARTMUSEUM_API/api/$([ -z $DRONE_TAG ] && echo testing |echo stable)/charts"
+  - sed -i "s/image_tag:\ \"canary\"/image_tag:\ $IMAGE_TAG/g" charts/imagebuilder/values.yaml
+  - helm package charts/imagebuilder --version ${DRONE_TAG:-v1.0.0}
+  - curl -u $CHARTMUSEUM_USERNAME:$CHARTMUSEUM_PASSWORD -F chart=@imagebuilder-${DRONE_TAG:-v1.0.0}.tgz "$CHARTMUSEUM_API/api/$([ -z $DRONE_TAG ] && echo testing |echo stable)/charts"
   environment:
     CHARTMUSEUM_USERNAME:
       from_secret: chartmuseum_username

.drone/manifest.tmpl

@@ -1,5 +1,5 @@
 
-image: docker.io/drycc/buildparker:{{#if build.tag}}{{trimPrefix "v" build.tag}}{{else}}canary{{/if}}
+image: docker.io/drycc/imagebuilder:{{#if build.tag}}{{trimPrefix "v" build.tag}}{{else}}canary{{/if}}
 {{#if build.tags}}
 tags:
 {{#each build.tags}}
@@ -8,12 +8,12 @@ tags:
 {{/if}}
 manifests:
   -
-    image: docker.io/drycc/buildparker:{{#if build.tag}}{{build.tag}}-{{else}}latest-{{/if}}linux-amd64
+    image: docker.io/drycc/imagebuilder:{{#if build.tag}}{{build.tag}}-{{else}}latest-{{/if}}linux-amd64
     platform:
       architecture: amd64
       os: linux
   -
-    image: docker.io/drycc/buildparker:{{#if build.tag}}{{build.tag}}-{{else}}latest-{{/if}}linux-arm64
+    image: docker.io/drycc/imagebuilder:{{#if build.tag}}{{build.tag}}-{{else}}latest-{{/if}}linux-arm64
     platform:
       architecture: arm64
       os: linux

README.md

@@ -9,11 +9,9 @@ We welcome your input! If you have feedback, please [submit an issue][issues]. I
 
 # About
 
-The imagebuilder downloads a git archive ([gzip](http://www.gzip.org/)ped [tar](https://www.gnu.org/software/tar/)ball) from a specified [S3 API compatible server][s3-api], compiles a [slug](https://devcenter.heroku.com/articles/slug-compiler) and uploads it to a specified S3 API compatible server.
+The V3 version of imagebuilder unifies the building model, uses the latest CNCF [buildpack](https://github.com/buildpacks) building program, and also supports the dockerfile format.
 
-This component is usually launched by the [Drycc Builder](https://github.com/drycc/builder) and used inside the Drycc [PaaS](https://en.wikipedia.org/wiki/Platform_as_a_service), but it is flexible enough to be used as a pod inside any Kubernetes cluster.
-
-Please see https://github.com/drycc/builder/blob/master/README.md for a more detailed description of how `imagebuilder` interacts with `builder`.
+You can use `DRYCC_STACK` specifies the construction mode. Currently, you can choose two construction formats: `container` and `buildpack`.
 
 # Development