improve docker functionality

.dockerignore

@@ -1 +1,19 @@
-**/*.env
+**/*.env
+.git
+.github
+.husky
+coverage
+logs
+node_modules
+.dockerignore
+.editorconfig
+.eslintrc.cjs
+.gitignore
+.lintstagedrc.json
+.prettierignore
+.prettierrc.js
+compose-test.yaml
+Dockerfile
+README
+server-dev-only.cert
+server-dev-only.key

CHANGELOG.md

@@ -0,0 +1,13 @@
+# signing-service Changelog
+
+## 0.3.0 - 2024-04-22
+### Changed
+- add healthz endpoint for use with docker HEALTHCHECK
+- update README
+- update .dockerignore
+- update Dockerfile with multistage production build
+- removed unused status package
+- update issuer-core import to instead use issuer-instance from npm
+- added CHANGELOG
+
+For previous history, see Git commits.

Dockerfile

@@ -1,6 +1,16 @@
-FROM node:18-alpine
+FROM node:18 as builder
+ADD . /app
+ENV NODE_ENV=production
 WORKDIR /app
-COPY . .
-RUN npm install
-CMD ["node", "server.js"]
-EXPOSE 4006
+RUN npm install 
+
+FROM gcr.io/distroless/nodejs18-debian11
+COPY --from=builder /app/node_modules /app/node_modules
+COPY --from=builder /app/server.js /app/server.js
+COPY --from=builder /app/src /app/src
+COPY --from=builder /app/package.json /app/package.json
+
+CMD ["app/server.js"]
+
+EXPOSE 4006
+

Dockerfile.local

@@ -0,0 +1,6 @@
+FROM node:20
+WORKDIR /app
+COPY . .
+RUN npm install
+CMD ["node", "server.js"]
+EXPOSE 4006

README.md

@@ -60,7 +60,7 @@ You can try this signing-service in about three minutes:
 2. From a terminal prompt, run:
 
 ```
-docker run -dp 4006:4006 digitalcredentials/signing-service:0.2.0
+docker run -dp 4006:4006 digitalcredentials/signing-service:0.3.0
 ```
 
 You can now issue test credentials as explained in the [Sign a Credential](#sign-a-credential) section.