Add CI integration.

docker/poudboot/Dockerfile

@@ -0,0 +1,13 @@
+FROM rustlang/rust:nightly-alpine3.19 AS builder
+
+RUN apk add --no-cache musl-dev
+
+RUN mkdir /root/poudboot
+WORKDIR /root/poudboot
+COPY . .
+# TODO: Add static build, which currently errors due to proc_macro. RUSTFLAGS="-C target-feature=+crt-static"
+RUN CARGO_TARGET_DIR=/target cargo build --profile release-lto
+
+FROM alpine:3.19 AS runner
+
+COPY --from=builder /target/release-lto/poudboot /usr/bin/

docker/poudboot/Makefile

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+SHELL := bash
+.ONESHELL:
+.SHELLFLAGS := -eu -o pipefail -c
+.DELETE_ON_ERROR:
+MAKEFLAGS += --warn-undefined-variables
+MAKEFLAGS += --no-builtin-rules
+OS:=$(shell uname -s)
+
+ifeq ($(origin .RECIPEPREFIX), undefined)
+  $(error This Make does not support .RECIPEPREFIX. Please use GNU Make 4.0 or later)
+endif
+.RECIPEPREFIX = >
+
+IMAGE_NAME:=poudboot
+TARGET :=
+
+.PHONY: help
+help:
+> @grep -h "##" $(MAKEFILE_LIST) | grep -v grep | sed -E 's/^([^:]*): *## */\1:  /'
+
+.PHONY: build
+build: ## Build the docker image.
+> docker build --tag $(IMAGE_NAME) --target=$(TARGET) --file Dockerfile ../../
+
+.PHONY: shell
+shell: ## Launch an interactive shell inside the docker image.
+shell: build
+> docker run --rm -i -t --entrypoint /bin/sh --mount type=tmpfs,destination=/tmp $(IMAGE_NAME)
+
+.PHONY: clean
+clean:
+> docker rmi $(IMAGE_NAME)

docker/poudboot_development/Dockerfile

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+FROM rustlang/rust:nightly-alpine3.19 AS builder
+
+RUN apk add --no-cache musl-dev
+RUN cargo install --locked --no-default-features --features ci-autoclean cargo-cache
+RUN rustup component add rustfmt
+RUN rustup component add clippy

docker/poudboot_development/Makefile

@@ -0,0 +1,33 @@
+SHELL := bash
+.ONESHELL:
+.SHELLFLAGS := -eu -o pipefail -c
+.DELETE_ON_ERROR:
+MAKEFLAGS += --warn-undefined-variables
+MAKEFLAGS += --no-builtin-rules
+
+ifeq ($(origin .RECIPEPREFIX), undefined)
+  $(error This Make does not support .RECIPEPREFIX. Please use GNU Make 4.0 or later)
+endif
+.RECIPEPREFIX = >
+
+IMAGE_NAME:=poudboot-development
+TARGET :=
+
+.PHONY: help
+help:
+> @grep -h "##" $(MAKEFILE_LIST) | grep -v grep | sed -E 's/^([^:]*): *## */\1:  /'
+
+.PHONY: build
+build: ## Build the docker image.
+> docker build --tag $(IMAGE_NAME) --target=$(TARGET) --file Dockerfile .
+> docker volume create poudboot-cargo-registry
+
+.PHONY: shell
+shell: ## Launch an interactive shell inside the docker image with the source repository mounted at /source.
+shell: build
+> docker run --rm -i -t --entrypoint /bin/sh --mount type=tmpfs,destination=/tmp -v "$$(readlink -f ../../):/source" --workdir=/source --env CARGO_TARGET_DIR=/target -v "poudboot-cargo-registry:/usr/local/cargo/registry" $(IMAGE_NAME)
+
+.PHONY: clean
+clean:
+> docker rmi $(IMAGE_NAME)
+> docker volume rm poudboot-cargo-registry