add readme and actions

.dockerignore

@@ -0,0 +1,5 @@
+assets
+.circleci
+.goreleaser.yaml
+README.md
+LICENSE

.github/workflows/scheduled-scan.yml

@@ -0,0 +1,21 @@
+name: Scan with trivy
+on:
+  schedule:
+    - cron:  '* * * * *'
+jobs:
+  scan:
+    name: Scan via trivy
+    runs-on: ubuntu-latest
+    steps:
+      - name: Scan image for vulnerabilities
+        uses: docker://docker.io/aquasec/trivy:v0.3.1
+        with:
+          args: --cache-dir /var/lib/trivy --exit-code 1 --no-progress goodwithtech/dockle:latest
+  sendmessage:
+      - name: Slack notification
+        env:
+          WEBHOOK_URL: ${{ secrets.WEBHOOK_URL }}
+          MESSAGE: 'message'
+          USERNAME: scan-result
+          CHANNEL: times_amachi
+        uses: svikramjeet/git-actions@master

Dockerfile

@@ -0,0 +1,18 @@
+FROM golang:1.13-alpine AS builder
+COPY go.mod go.sum /app/
+WORKDIR /app/
+RUN apk --no-cache add git
+RUN go mod download
+COPY . /app/
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o /dockertags cmd/dockertags/main.go
+
+FROM alpine:3.11
+COPY --from=builder /dockertags /usr/local/bin/dockertags
+RUN chmod +x /usr/local/bin/dockertags
+RUN apk --no-cache add ca-certificates shadow
+
+# for use docker daemon via mounted /var/run/docker.sock
+RUN addgroup -S docker && adduser -S -G docker dockertags
+USER dockertags
+
+ENTRYPOINT ["dockertags"]

README.md

@@ -1,16 +1,21 @@
 # dockertags
 Show information of container image ordered by time tag created at.
-
 Now supporting Docker Hub, GCR (Google Container Registry) and Amazon ECR (Elastic Container Registry).
 
+<img src="assets/usage.gif" width="700">
+
+
 
 ## Quick Start
 
 ```bash
 $ brew install goodwithtech/r/dockertags
 $ dockertags [IMAGE_NAME]
-```
 
+or 
+
+$ docker run --rm goodwithtech/dockertags [IMAGENAME]
+```
 ## When to Use
 
 Make easy to fetch target tag in scheduled operation.
@@ -61,6 +66,7 @@ $ dockertags -limit 2 -contain v0.2 -format json goodwithtech/dockle
 ]
 ```
 
+## GitHub Actions
 
 ## Authentication