feat(ci): use custom builder image

.woodpecker/build.yml

@@ -7,26 +7,15 @@ when:
 
 steps:
   build:
-    image: 'rust:1.79-alpine3.19'
-    environment:
-      - 'LIBARCHIVE_STATIC=1'
+    image: 'git.rustybever.be/chewing_bever/rieter-builder:1.79-alpine3.19'
     commands:
-      # Dependencies required to statically compile libarchive and libsqlite3
-      - >
-        apk add --no-cache build-base
-        libarchive-static libarchive-dev
-        zlib-static
-        openssl-libs-static
-        bzip2-static
-        xz-static
-        expat-static
-        zstd-static
-        lz4-static
-        acl-static
       - cargo build --verbose
       # Binaries, even debug ones, should be statically compiled
       - '[ "$(readelf -d target/debug/rieterd | grep NEEDED | wc -l)" = 0 ]'
-      # Clippy also performs a full build, so putting it here saves the CI a
-      # lot of work
-      - rustup component add clippy
+
+    # Clippy also performs a full build, so putting it here saves the CI a
+    # lot of work
+  clippy:
+    image: 'git.rustybever.be/chewing_bever/rieter-builder:1.79-alpine3.19'
+    commands:
       - cargo clippy -- --no-deps -Dwarnings 

.woodpecker/lint.yml

@@ -7,7 +7,6 @@ when:
 
 steps:
   lint:
-    image: 'rust:1.79-alpine3.19'
+    image: 'git.rustybever.be/chewing_bever/rieter-builder:1.79-alpine3.19'
     commands:
-      - rustup component add rustfmt
       - cargo fmt -- --check

build.Dockerfile

@@ -0,0 +1,20 @@
+# Command to build and push builder image (change tags as necessary):
+# docker buildx build -f build.Dockerfile -t git.rustybever.be/chewing_bever/rieter-builder:1.79-alpine3.19 --platform linux/amd64,linux/arm64 --push .
+FROM rust:1.79-alpine3.19
+
+# Dependencies required to statically compile libarchive and libsqlite3
+RUN apk add --no-cache \
+        build-base \
+        libarchive-static libarchive-dev \
+        zlib-static \
+        openssl-libs-static \
+        bzip2-static \
+        xz-static \
+        expat-static \
+        zstd-static \
+        lz4-static \
+        acl-static && \
+    rustup component add clippy rustfmt
+
+# Tell the libarchive3-sys package to statically link libarchive
+ENV LIBARCHIVE_STATIC=1