✨ 🐳 Add support for dockerized builds
The initial docker builds takes a while with QEMU, while the built docker image caches makes building locally very fast. If this is for the purpose of reuse, one may just pull the latest version from the docker registry, making it more efficient than just building from the sources (without having experience with rust/cargo). Docker builds can be performed as follows: $ docker buildx build --platform linux/amd64 -t marcellodesales/mdbook -o type=docker . [+] Building 2.8s (23/23) FINISHED => [internal] load build definition from Dockerfile 0.0s => => transferring dockerfile: 2.17kB 0.0s => [internal] load .dockerignore 0.0s => => transferring context: 2B 0.0s => [internal] load metadata for docker.io/library/alpine:3.16.0 2.0s => [internal] load metadata for docker.io/rustlang/rust:nightly-buster-slim 1.4s => [auth] library/alpine:pull token for registry-1.docker.io 0.0s => [auth] rustlang/rust:pull token for registry-1.docker.io 0.0s => [runtime 1/3] FROM docker.io/library/alpine:3.16.0@sha256:686d8c9dfa6f3ccfc8230bc3178d23f84eeaf7e457f36f271ab1acc53015037c 0.0s => => resolve docker.io/library/alpine:3.16.0@sha256:686d8c9dfa6f3ccfc8230bc3178d23f84eeaf7e457f36f271ab1acc53015037c 0.0s => [builder 1/11] FROM docker.io/rustlang/rust:nightly-buster-slim@sha256:609c65daad3c69f9a37717e45d794e2eab99ad488dc5d492b8fc85c97c1df531 0.0s => => resolve docker.io/rustlang/rust:nightly-buster-slim@sha256:609c65daad3c69f9a37717e45d794e2eab99ad488dc5d492b8fc85c97c1df531 0.0s => [internal] load build context 0.0s => => transferring context: 4.94kB 0.0s => CACHED [builder 2/11] RUN apt-get update && apt-get install -y git 0.0s => CACHED [builder 3/11] WORKDIR /usr/src/github.com/rust-lang 0.0s => CACHED [builder 4/11] RUN USER=root cargo new mdBook 0.0s => CACHED [builder 5/11] COPY Cargo.toml Cargo.lock /usr/src/github.com/rust-lang/mdBook 0.0s => CACHED [builder 6/11] COPY examples /usr/src/github.com/rust-lang/mdBook/examples 0.0s => CACHED [builder 7/11] WORKDIR /usr/src/github.com/rust-lang/mdBook 0.0s => CACHED [builder 8/11] RUN rustup target add x86_64-unknown-linux-musl 0.0s => CACHED [builder 9/11] RUN cargo build -vv --config "net.git-fetch-with-cli=true" --target x86_64-unknown-linux-musl --release 0.0s => CACHED [builder 10/11] COPY src /usr/src/github.com/rust-lang/mdBook/src 0.0s => CACHED [builder 11/11] RUN cargo build --locked --bin mdbook --release --target x86_64-unknown-linux-musl 0.0s => CACHED [runtime 2/3] COPY --from=builder /usr/src/github.com/rust-lang/mdBook/target/x86_64-unknown-linux-musl/release/mdbook /usr/local/bin/mdbook 0.0s => CACHED [runtime 3/3] RUN echo "I am running on linux/arm64, building for linux/amd64" > /etc/build.log 0.0s => exporting to oci image format 0.7s => => exporting layers 0.0s => => exporting manifest sha256:f658cf0db29cb5655960164f745fbd841fb0dbba53f2b387e60c5e23f360459b 0.0s => => exporting config sha256:55c34204ee9e1fea12a11af808615f46f89cb428a3c6ff1e46c1bade9282a26a 0.0s => => sending tarball 0.7s => importing to docker Running the server is a matter of the following: * Specifying a container to run exposing a given port number * Specifying the source-code to load mounted as docker volume At this point, just specifying the current dir of sources with md files and the local port number the same as the server, here's what we have: $ ls -la src total 24 drwxr-xr-x 13 mdesales staff 416 Feb 22 14:06 . drwxr-xr-x 12 mdesales staff 384 Feb 22 14:06 .. -rw-r--r-- 1 mdesales staff 980 Feb 22 14:06 README.md -rw-r--r-- 1 mdesales staff 4764 Feb 22 14:06 SUMMARY.md drwxr-xr-x 10 mdesales staff 320 Feb 22 14:06 assets drwxr-xr-x 7 mdesales staff 224 Feb 22 14:06 data drwxr-xr-x 19 mdesales staff 608 Feb 22 14:06 infra drwxr-xr-x 7 mdesales staff 224 Feb 22 14:06 monitoring drwxr-xr-x 7 mdesales staff 224 Feb 22 14:06 onboard drwxr-xr-x 17 mdesales staff 544 Feb 22 14:06 services drwxr-xr-x 4 mdesales staff 128 Feb 22 14:06 structure drwxr-xr-x 43 mdesales staff 1376 Feb 22 14:06 support drwxr-xr-x 17 mdesales staff 544 Feb 22 14:06 tips $ docker run -ti -v $(pwd)/src:/src -p 3000:3000 marcellodesales/mdbook WARNING: The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested 2023-02-23 03:08:29 [INFO] (mdbook::book): Book building has started 2023-02-23 03:08:29 [INFO] (mdbook::book): Running the html backend 2023-02-23 03:08:34 [INFO] (mdbook::cmd::serve): Serving on: http://0.0.0.0:3000 2023-02-23 03:08:34 [INFO] (warp::server): Server::run; addr=0.0.0.0:3000 2023-02-23 03:08:34 [INFO] (warp::server): listening on http://0.0.0.0:3000 2023-02-23 03:08:34 [INFO] (mdbook::cmd::watch): Listening for changes... At this point, one may just check the service locally as follows: $ curl -I http://localhost:3000/ HTTP/1.1 200 OK content-length: 26343 content-type: text/html accept-ranges: bytes last-modified: Thu, 23 Feb 2023 03:08:29 GMT date: Thu, 23 Feb 2023 03:08:35 GMT $ curl http://localhost:3000/ | grep mdBook % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 <!-- Book generated using mdBook --> 100 26343 100 26343 0 0 366k 0 --:--:-- --:--:-- --:--:-- 467k
This commit is contained in:
Marcello DeSales
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################
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##### Builder
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##### docker buildx create --use --name multi-builder --platform linux/arm64,linux/amd64
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# https://github.com/docker/buildx/issues/318#issuecomment-1023226339
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#FROM --platform=$BUILDPLATFORM rustlang/rust:nightly-buster-slim as builder
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FROM rustlang/rust:nightly-buster-slim as builder
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# Installing git because of the workaround for the config
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# https://github.com/rust-lang/cargo/issues/10781#issuecomment-1441071052
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RUN apt-get update && apt-get install -y git
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WORKDIR /usr/src/github.com/rust-lang
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# Create blank project
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RUN USER=root cargo new mdBook
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# We want dependencies cached, so copy those first.
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COPY Cargo.toml Cargo.lock /usr/src/github.com/rust-lang/mdBook
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# examples is referenced in Cargo.toml
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COPY examples /usr/src/github.com/rust-lang/mdBook/examples
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WORKDIR /usr/src/github.com/rust-lang/mdBook
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## Install target platform (Cross-Compilation) --> Needed for Alpine
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#RUN rustup install nightly
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RUN rustup target add x86_64-unknown-linux-musl
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# This is a dummy build to get the dependencies cached.
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# https://github.com/rust-lang/cargo/issues/8172#issuecomment-659056517
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# Very slow builds: https://github.com/rust-lang/cargo/issues/9167#issuecomment-1219251978
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# Logs verbose: https://github.com/rust-lang/cargo/issues/1106#issuecomment-141555744
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RUN cargo build -vv --config "net.git-fetch-with-cli=true" --target x86_64-unknown-linux-musl --release
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# Now copy in the rest of the sources
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COPY src /usr/src/github.com/rust-lang/mdBook/src
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# This is the actual application build: # ./target/x86_64-unknown-linux-musl/release/mdbook
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RUN cargo build --locked --bin mdbook --release --target x86_64-unknown-linux-musl
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################
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##### Runtime
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FROM --platform=$BUILDPLATFORM alpine:3.16.0 AS runtime
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# Copy application binary from builder image
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COPY --from=builder /usr/src/github.com/rust-lang/mdBook/target/x86_64-unknown-linux-musl/release/mdbook /usr/local/bin/mdbook
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ARG TARGETPLATFORM
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ARG BUILDPLATFORM
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RUN echo "I am running on $BUILDPLATFORM, building for $TARGETPLATFORM" > /etc/build.log
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EXPOSE 3000
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ENTRYPOINT ["mdbook", "serve", "--hostname", "0.0.0.0"]
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