Dockerfile changes (#19)

Dockerfile

@@ -0,0 +1,19 @@
+FROM cgr.dev/chainguard/wolfi-base as build
+
+USER root
+
+RUN apk update \
+    && apk add --no-cache make go
+
+WORKDIR /deepwalk
+
+COPY . .
+
+RUN CGO_ENABLED=0 go build -o deepwalk . && chmod +x deepwalk
+
+FROM cgr.dev/chainguard/static
+
+COPY --from=build /deepwalk/deepwalk /deepwalk
+
+ENTRYPOINT ["/deepwalk"]
+CMD ["--help"]

README.md

@@ -26,6 +26,16 @@ import (
 )
 ```
 
+Or, use the provided Dockerfile:
+```
+make build-wolfi
+```
+
+then:
+```
+docker run deepwalk:latest
+```
+
 ## Examples
 
 The original use-case for this in Python was to traverse Python dictionaries. While Golang has different names and conventions for this, the approach remains the same.
@@ -282,6 +292,25 @@ To cut a release for this package, do the following:
 - Run `git push origin --tags`
 - Create a new release using the new tag
 
+### Dockerfile Scan
+
+0 CVEs c/o Wolfi:
+```
+❯ grype deepwalk:latest
+ ✔ Vulnerability DB                [no update available]
+ ✔ Loaded image                                                                                                                      deepwalk:latest
+ ✔ Parsed image                                                              sha256:15776b55889a5e6500937a6ee1d9c8b0c5f6dea8f2e9631e324f27fa48a7077c
+ ✔ Cataloged contents                                                               a89b0db2a340569633d593f81c58297e103de4b8ca80f97459ed5678809c4f24
+   ├── ✔ Packages                        [14 packages]
+   ├── ✔ File digests                    [397 files]
+   ├── ✔ File metadata                   [397 locations]
+   └── ✔ Executables                     [1 executables]
+ ✔ Scanned for vulnerabilities     [0 vulnerability matches]
+   ├── by severity: 0 critical, 0 high, 0 medium, 0 low, 0 negligible
+   └── by status:   0 fixed, 0 not-fixed, 0 ignored
+No vulnerabilities found
+```
+
 ## Acknowledgements
 
 [wk8](https://github.com/wk8) for their extremely handy [go-ordered-map](https://pkg.go.dev/github.com/wk8/go-ordered-map/v2@v2.1.8) package

makefile

@@ -7,7 +7,7 @@ build:
 	go build -race -o deepwalk .
 
 build-docker:
-	docker buildx build -f Dockerfile.wolfi . --load
+	docker buildx build -f Dockerfile . --load -t deepwalk:latest
 
 clean-mod:
 	go clean -modcache