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chaos-mesh開發中的鏡像編譯過程，相信很多沒有經驗的人對此束手無策，為此本文總結了問題出現的原因和解決方法，通過這篇文章希望你能解決這個問題。
chaosmesh是一款K8S環境用的混沌工程輕量級實現，支持多種混沌場景構建。 它可通過docker鏡像方式部署，但如果想修改/二次開發，它的編譯不是很便捷（you may try..）。 因此這里基于官方方式，拆分成幾個子步驟：
最重的部分是第一步
而和代碼相關是第二步
第三步是為了生成可部署的鏡像
以下執行目錄都是在 chaos-mesh/ 前置步驟是：
docker環境 golang開發環境 git clone https://github.com/pingcap/chaos-mesh
剝離出，基礎鏡像生成部分 命名為獨立Dockerfile文件：Dockerfile.buildbase
FROM golang:1.14.4-alpine3.12 AS build_base ARG HTTPS_PROXY ARG HTTP_PROXY RUN apk add --no-cache gcc g++ make bash git RUN apk add --update nodejs yarn
執行鏡像生成 2C8G，約耗時2小時，主要耗時是apk安裝過程
docker build -f Dockerfile.buildbase -t chaosmesh_buildbase:0.1 .
執行過程輸出
Sending build context to Docker daemon 2.267MB Step 1/5 : FROM golang:1.14.4-alpine3.12 AS build_base ---> 3289bf11c284 Step 2/5 : ARG HTTPS_PROXY ---> Using cache ---> b71cc9152dba Step 3/5 : ARG HTTP_PROXY ---> Using cache ---> 00340bb53cfb Step 4/5 : RUN apk add --no-cache gcc g++ make bash git ---> Running in 25a64b772133 fetch http://dl-cdn.alpinelinux.org/alpine/v3.12/main/x86_64/APKINDEX.tar.gz fetch http://dl-cdn.alpinelinux.org/alpine/v3.12/community/x86_64/APKINDEX.tar.gz (1/24) Installing ncurses-terminfo-base (6.2_p20200523-r0) (2/24) Installing ncurses-libs (6.2_p20200523-r0) (3/24) Installing readline (8.0.4-r0) (4/24) Installing bash (5.0.17-r0) Executing bash-5.0.17-r0.post-install (5/24) Installing libgcc (9.3.0-r2) (6/24) Installing libstdc++ (9.3.0-r2) (7/24) Installing binutils (2.34-r1) (8/24) Installing gmp (6.2.0-r0) (9/24) Installing isl (0.18-r0) (10/24) Installing libgomp (9.3.0-r2) (11/24) Installing libatomic (9.3.0-r2) (12/24) Installing libgphobos (9.3.0-r2) (13/24) Installing mpfr4 (4.0.2-r4) (14/24) Installing mpc1 (1.1.0-r1) (15/24) Installing gcc (9.3.0-r2) (16/24) Installing musl-dev (1.1.24-r8) (17/24) Installing libc-dev (0.7.2-r3) (18/24) Installing g++ (9.3.0-r2) (19/24) Installing nghttp2-libs (1.41.0-r0) (20/24) Installing libcurl (7.69.1-r0) (21/24) Installing expat (2.2.9-r1) (22/24) Installing pcre2 (10.35-r0) (23/24) Installing git (2.26.2-r0) (24/24) Installing make (4.3-r0) Executing busybox-1.31.1-r16.trigger OK: 218 MiB in 39 packages Removing intermediate container 25a64b772133 ---> 7b35c82ec76a Step 5/5 : RUN apk add --update nodejs yarn ---> Running in 9b8192793f49 fetch http://dl-cdn.alpinelinux.org/alpine/v3.12/main/x86_64/APKINDEX.tar.gz fetch http://dl-cdn.alpinelinux.org/alpine/v3.12/community/x86_64/APKINDEX.tar.gz (1/5) Installing brotli-libs (1.0.7-r5) (2/5) Installing c-ares (1.16.1-r0) (3/5) Installing libuv (1.37.0-r0) (4/5) Installing nodejs (12.17.0-r0) (5/5) Installing yarn (1.22.4-r0) Executing busybox-1.31.1-r16.trigger OK: 253 MiB in 44 packages Removing intermediate container 9b8192793f49 ---> 6ec726d66bc3 Successfully built 6ec726d66bc3 Successfully tagged chaosmesh_buildbase:0.1
產生內容
# docker images ... chaosmesh_buildbase 0.1 6ec726d66bc3 45 seconds ago 625MB
剝離出，業務鏡像生成部分 命名為獨立Dockerfile文件：Dockerfile.buildbinary
FROM chaosmesh_buildbase:0.1 as build_base ENV GO111MODULE=on ENV GOPROXY=https://goproxy.cn # 新增的，處理包下載失敗問題 WORKDIR /src COPY go.mod . COPY go.sum . RUN go mod download FROM build_base AS binary_builder ARG HTTPS_PROXY ARG HTTP_PROXY ARG UI ARG SWAGGER COPY . /src WORKDIR /src RUN make binary
執行鏡像生成 2C8G，約耗時0.5小時，后續執行有只需2分鐘
docker build -f Dockerfile.buildbinary -t chaosmesh_my:0.1 .
執行過程輸出
Sending build context to Docker daemon 2.268MB Step 1/15 : FROM chaosmesh_buildbase:0.1 as build_base ---> 6ec726d66bc3 Step 2/15 : ENV GO111MODULE=on ---> Using cache ---> 77f7eb612c78 Step 3/15 : ENV GOPROXY=https://goproxy.cn ---> Running in ff92b4113844 Removing intermediate container ff92b4113844 ---> faaa5e678ee0 Step 4/15 : WORKDIR /src ---> Running in e677d7457f11 Removing intermediate container e677d7457f11 ---> a919ebec1df6 Step 5/15 : COPY go.mod . ---> 1651592cc8eb Step 6/15 : COPY go.sum . ---> 6a2c3e26a54a Step 7/15 : RUN go mod download ---> Running in f7a15063e33a Removing intermediate container f7a15063e33a ---> e406d3f23575 Step 8/15 : FROM build_base AS binary_builder ---> e406d3f23575 Step 9/15 : ARG HTTPS_PROXY ---> Running in 360b9686a970 Removing intermediate container 360b9686a970 ---> f7a35aac4e60 Step 10/15 : ARG HTTP_PROXY ---> Running in 0d53c5bd7bb3 Removing intermediate container 0d53c5bd7bb3 ---> 242f81bdf7bc Step 11/15 : ARG UI ---> Running in 9a8a3a6a3aee Removing intermediate container 9a8a3a6a3aee ---> 5ec849e5d942 Step 12/15 : ARG SWAGGER ---> Running in dd1f9766dfef Removing intermediate container dd1f9766dfef ---> 646f623900e5 Step 13/15 : COPY . /src ---> 780dcca532a0 Step 14/15 : WORKDIR /src ---> Running in efe4967d715d Removing intermediate container efe4967d715d ---> 39b9806a50f9 Step 15/15 : RUN make binary ---> Running in ebf1e23916a0 GO15VENDOREXPERIMENT="1" CGO_ENABLED=0 GOOS="" GOARCH="" go get sigs.k8s.io/controller-tools/cmd/controller-gen@v0.2.5 go: found sigs.k8s.io/controller-tools/cmd/controller-gen in sigs.k8s.io/controller-tools v0.2.5 /go/bin/controller-gen object:headerFile=./hack/boilerplate/boilerplate.generatego.txt paths="./..." GO15VENDOREXPERIMENT="1" CGO_ENABLED=1 GOOS="" GOARCH="" go build -ldflags '-s -w -X 'github.com/pingcap/chaos-mesh/pkg/version.buildDate=2020-06-12T09:08:08Z'' -o bin/chaos-daemon ./cmd/chaos-daemon/main.go GO15VENDOREXPERIMENT="1" CGO_ENABLED=0 GOOS="" GOARCH="" go build -ldflags '-s -w -X 'github.com/pingcap/chaos-mesh/pkg/version.buildDate=2020-06-12T09:08:50Z'' -o bin/chaos-controller-manager ./cmd/controller-manager/*.go GO15VENDOREXPERIMENT="1" CGO_ENABLED=0 GOOS="" GOARCH="" go build -ldflags '-s -w -X 'github.com/pingcap/chaos-mesh/pkg/version.buildDate=2020-06-12T09:08:58Z'' -o bin/chaosfs ./cmd/chaosfs/*.go GO15VENDOREXPERIMENT="1" CGO_ENABLED=1 GOOS="" GOARCH="" go build -ldflags '-s -w -X 'github.com/pingcap/chaos-mesh/pkg/version.buildDate=2020-06-12T09:09:02Z'' -tags "" -o bin/chaos-dashboard cmd/chaos-dashboard/*.go Removing intermediate container ebf1e23916a0 ---> 166906930d82 Successfully built 166906930d82 Successfully tagged chaosmesh_my:0.1
產生內容 生成的鏡像大了不少，還有幾個中間鏡像文件"(<none>)
# docker images ... chaosmesh_my 0.1 166906930d82 3 minutes ago 2.67GB <none> <none> f6e5468571fe 9 minutes ago 625MB <none> <none> 6255c2ee2630 20 minutes ago 625MB chaosmesh_buildbase 0.1 6ec726d66bc3 29 minutes ago 625MB
對比官方安裝鏡像的效果：
# docker images ... pingcap/chaos-dashboard latest 763cddd4c303 23 hours ago 57.5MB pingcap/chaos-mesh latest 6e2777640799 42 hours ago 40.6MB pingcap/chaos-daemon latest af1cb5058c1d 42 hours ago 59.7MB
注：Dockerfile的主體，來自chaos-mesh項目本身的 ./images/各個組件/Dockerfile 修改的是 COPY --from=二進制文件來源鏡像
業務鏡像 命名為獨立Dockerfile文件：Dockerfile.chaos-daemon
FROM alpine:3.10 ARG HTTPS_PROXY ARG HTTP_PROXY RUN apk add --no-cache tzdata iptables ipset stress-ng iproute2 COPY --from=chaosmesh_my:0.1 /src/bin/chaos-daemon /usr/local/bin/chaos-daemon
執行鏡像生成
docker build -f Dockerfile.chaos-daemon -t chaos-daemon:my .
產生內容
chaos-daemon my 72f767fd07a3 15 seconds ago 59.7MB
業務鏡像 命名為獨立Dockerfile文件：Dockerfile.chaos-mesh
FROM alpine:3.10 ARG HTTPS_PROXY ARG HTTP_PROXY RUN apk add tzdata --no-cache COPY --from=chaosmesh_my:0.1 /src/bin/chaos-controller-manager /usr/local/bin/chaos-controller-manager
執行鏡像生成
docker build -f Dockerfile.chaos-mesh -t chaos-mesh:my .
產生內容
chaos-mesh my 36bf11bc3837 41 seconds ago 40.6MB
對官方鏡像 vs 自生成鏡像，可以簡單對比
docker history 鏡像ID --no-trunc
因為Dockerfile都是一致的，差別就是最后copy的那個二進制文件
看完上述內容，你們掌握chaos-mesh開發中的鏡像編譯過程的方法了嗎？如果還想學到更多技能或想了解更多相關內容，歡迎關注億速云行業資訊頻道，感謝各位的閱讀！
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