feat(container): install bunyan and jq for log parsing (#263)

* feat(container): install bunyan and jq for log parsing

* fix(docs): replace docker cloud link with paywall

Dockerfile.alpine

@@ -1,5 +1,11 @@
 FROM node:11-alpine
 
+# dependencies: log filtering
+RUN apk add --update jq \
+ && rm -rf /var/cache/apk/* \
+ && yarn global add bunyan
+ENV PATH="${PATH}:$(yarn global bin)"
+
 # copy config, which changes rarely
 COPY docs/config-docker.yml /root/.salty-dog.yml
 
@@ -14,7 +20,6 @@ COPY out/index.js /salty-dog/out/index.js
 # set up as global cli tool
 WORKDIR /salty-dog
 RUN yarn global add file:$(pwd)
-ENV PATH="${PATH}:$(yarn global bin)"
 
 COPY rules /salty-dog/rules
 

Dockerfile.stretch

@@ -1,5 +1,12 @@
 FROM node:11-stretch
 
+# dependencies: log filtering
+RUN apt-get update -y \
+ && apt-get install -y jq \
+ && rm -rf /var/lib/apt/lists/* \
+ && yarn global add bunyan
+ENV PATH="${PATH}:$(yarn global bin)"
+
 # copy config, which changes rarely
 COPY docs/config-docker.yml /root/.salty-dog.yml
 
@@ -14,7 +21,6 @@ COPY out/index.js /salty-dog/out/index.js
 # set up as global cli tool
 WORKDIR /salty-dog
 RUN yarn global add file:$(pwd)
-ENV PATH="${PATH}:$(yarn global bin)"
 
 COPY rules /salty-dog/rules
 

README.md

@@ -145,7 +145,7 @@ docker build -t salty-dog:alpine -f Dockerfile.alpine .
 To run with Docker: `docker run --rm ssube/salty-dog:master`
 
 The latest semi-stable image is `ssube/salty-dog:master`. All
-[tags are listed here](https://cloud.docker.com/repository/docker/ssube/salty-dog/tags).
+[tags are listed here](https://hub.docker.com/r/ssube/salty-dog/tags).
 
 The Docker container is published for each branch and git tag, tagged with the git tag (or branch slug).