Merge pull request #54 from snyk/docker-image

Added a Dockerfile to help with using snyk-to-html in pipelines

Dockerfile

@@ -0,0 +1,7 @@
+FROM node:alpine
+
+RUN npm install snyk-to-html -g
+
+COPY docker-entrypoint.sh /usr/local/bin
+
+ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]

docker-entrypoint.sh

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+#!/bin/ash
+
+# snykt-to-html is used to generate HTML reports from Snyk JSON output
+#
+# Packaging up as a Docker images make reuse easier, especially in
+# modern CI pipelines
+#
+# snyk-to-html by default always outputs to a file but it's often useful
+# to output to stdout so this images changes the behaviour to support
+# the widest possible usage
+#
+# If no options passed
+# Read from stdin, output to stdout
+# if -i
+# Read from file on disk, output to stdout
+# if -o
+# Read from stdin, output to disk
+# If -i and -o
+# Read from file and output to file
+
+if ! [ -x "$(command -v snyk-to-html)" ]; then
+  echo "Error: snyk-to-html is not installed." >&2
+  exit 1
+fi
+
+while getopts ":i:o:" opt; do
+  case ${opt} in
+    i)
+      input=${OPTARG}
+      ;;
+    o)
+      output=${OPTARG}
+      ;;
+    \?)
+      echo "Invalid option: -${OPTARG}" >&2
+      exit 1
+      ;;
+    :)
+      echo "Option -${OPTARG} requires an argument." >&2
+      exit 1
+      ;;
+  esac
+done
+
+if [ -z "${output}" ]
+then
+    if [ -z "${input}" ]
+    then
+        snyk-to-html -o snyk.html > /dev/null
+        cat snyk.html
+    else
+        snyk-to-html -i ${input} -o snyk.html > /dev/null
+        cat snyk.html
+    fi
+else
+    if [ -z "${input}" ]
+    then
+        snyk-to-html -o ${output}
+    else
+        snyk-to-html -i ${input} -o ${output}
+    fi
+fi