Simplify Gitea container image (#54)

gitea/containerfile

@@ -1,17 +1,31 @@
 # This is free and unencumbered software released into the public domain.
 
-FROM docker.io/gitea/gitea:latest AS build
+FROM docker.io/alpine:latest AS build
 
-FROM docker.io/alpine:latest
+RUN apk add git
 
-RUN apk add gitea
+# gitea --version | grep -oE [0-9]+.[0-9]+.[0-9]+
+RUN wget -O gitea https://dl.gitea.com/gitea/1.22.4/gitea-1.22.4-linux-amd64
+RUN chmod +x gitea
+
+FROM scratch
+
+COPY --from=build /gitea /usr/bin/gitea
+
+COPY --from=build /usr/bin/git /usr/bin/git
+
+COPY --from=build /lib/ld-musl-x86_64.so.1 /lib/ld-musl-x86_64.so.1
+
+COPY --from=build /usr/lib/libpcre2-8.so.0 /usr/lib/libpcre2-8.so.0
+
+COPY --from=build /usr/lib/libz.so.1 /usr/lib/libz.so.1
+
+COPY --from=build /lib/ld-musl-x86_64.so.1 /lib/ld-musl-x86_64.so.1
 
 ENV GITEA_I_AM_BEING_UNSAFE_RUNNING_AS_ROOT=true
 
-ENTRYPOINT ["/usr/bin/gitea"]
+EXPOSE 80
 
-EXPOSE 3000
+ENTRYPOINT ["/usr/bin/gitea"]
 
-CMD [ \
-	"--config", "/opt/gitea/app.ini" \
-]
+CMD ["web", "--config", "/opt/gitea/app.ini", "--port", "80"]

gitea/justfile

@@ -7,7 +7,7 @@ build:
 	docker build --file containerfile --tag ghcr.io/ngarside/gitea:latest .
 
 run: stop
-	docker run --detach --name gitea --publish 8080:3000 --read-only --rm --volume {{ replace(justfile_directory(), '\', '/') }}/bin/opt:/opt/gitea --volume {{ replace(justfile_directory(), '\', '/') }}/bin/root:/root ghcr.io/ngarside/gitea:latest
+	docker run --detach --name gitea --publish 8080:80 --read-only --rm --volume {{ replace(justfile_directory(), '\', '/') }}/bin/opt:/opt/gitea --volume {{ replace(justfile_directory(), '\', '/') }}/bin/root:/root --volume {{ replace(justfile_directory(), '\', '/') }}/bin/tmp:/tmp ghcr.io/ngarside/gitea:latest
 
 stop:
 	docker stop gitea || true

scripts/alpine.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+# This is free and unencumbered software released into the public domain.
+
+set -euo pipefail
+
+docker run --interactive --rm --tty alpine /bin/sh