Pin the Docker image

IsaacG · IsaacG · commit 18e64d43b1ff · 2026-05-08T15:30:15.000-07:00
Exercism's policy is to prefer pinned versions.
Using the same hash across all runners allows us to store and reuse the same image, rather than needing to store a per-runner base image. This helps cut down on storage costs.
diff --git a/Dockerfile b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.22
+FROM alpine:3.22.4@sha256:310c62b5e7ca5b08167e4384c68db0fd2905dd9c7493756d356e893909057601
 
 RUN apk add --no-cache jq curl && \
     curl -Lo nu.tgz https://github.com/nushell/nushell/releases/download/0.111.0/nu-0.111.0-x86_64-unknown-linux-musl.tar.gz && \

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-FROM alpine:3.22`
	`1`	`+FROM alpine:3.22.4@sha256:310c62b5e7ca5b08167e4384c68db0fd2905dd9c7493756d356e893909057601`
`2`	`2`
`3`	`3`	`RUN apk add --no-cache jq curl && \`
`4`	`4`	`curl -Lo nu.tgz https://github.com/nushell/nushell/releases/download/0.111.0/nu-0.111.0-x86_64-unknown-linux-musl.tar.gz && \`