如何测量 Docker 构建步骤的持续时间? [英] How to measure Docker build steps duration?
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问题描述
是否可以将 Docker 配置为输出构建 Dockerfile 的时间?
Is it possible to configure Docker to output timing for the build of a Dockerfile?
我们经营着一个中型开发团队，希望收集有关我们开发人员开发容器的平均构建时间的统计数据.
We run a medium sized development team and would like to collect statistics on the average build times for our developers' development containers.
理想情况下，它应该测量各个步骤的持续时间.
Ideally, it should measure the duration of individual steps.
推荐答案
BuildKit，在18.06 和一般在 18.09 中可用，内置了此功能.要配置 dockerd 守护程序具有实验模式，您可以设置 daemon.json:
BuildKit, which was experimental in 18.06 and generally available in 18.09, has this functionality built in. To configure the dockerd daemon with experimental mode, you can setup the daemon.json:
$ cat /etc/docker/daemon.json
{
"experimental": true
}
然后你可以从客户端使用环境变量启用 BuildKit:
Then you can enable BuildKit from the client side with an environment variable:
$ export DOCKER_BUILDKIT=1
$ docker build -t java-test:latest .
[+] Building 421.6s (13/13) FINISHED
=> local://context (.dockerignore) 1.6s
=> => transferring context: 56B 0.3s
=> local://dockerfile (Dockerfile) 2.0s
=> => transferring dockerfile: 895B 0.4s
=> CACHED docker-image://docker.io/tonistiigi/copy:v0.1.3@sha256:e57a3b4d6240f55bac26b655d2cfb751f8b9412d6f 0.1s
=> docker-image://docker.io/library/openjdk:8-jdk-alpine 1.0s
=> => resolve docker.io/library/openjdk:8-jdk-alpine 0.0s
=> local://context 1.7s
=> => transferring context: 6.20kB 0.4s
=> docker-image://docker.io/library/openjdk:8-jre-alpine 1.3s
=> => resolve docker.io/library/openjdk:8-jre-alpine 0.0s
=> /bin/sh -c apk add --no-cache maven 61.0s
=> copy /src-0/pom.xml java/pom.xml 1.3s
=> /bin/sh -c mvn dependency:go-offline 339.4s
=> copy /src-0 java 0.9s
=> /bin/sh -c mvn package -Dmaven.test.skip=true 10.2s
=> copy /src-0/gs-spring-boot-docker-0.1.0.jar java/app.jar 0.8s
=> exporting to image 1.2s
=> => exporting layers 1.0s
=> => writing image sha256:d57028743ca10bb4d0527a294d5c83dd941aeb1033d4fe08949a135677846179 0.1s
=> => naming to docker.io/library/java-test:latest 0.1s
还有一个选项可以禁用 tty 控制台输出，它会生成更适合脚本的输出，每个部分都有开始、停止和持续时间:
There's also an option to disable the tty console output which generates output more suitable for scripting with each section having a start, stop, and duration:
$ docker build -t java-test:latest --progress plain .
#1 local://dockerfile (Dockerfile)
#1 digest: sha256:da721b637ea85add6e26070a48520675cefc2bed947c626f392be9890236d11b
#1 name: "local://dockerfile (Dockerfile)"
#1 started: 2018-09-05 19:30:53.899809093 +0000 UTC
#1 completed: 2018-09-05 19:30:53.899903348 +0000 UTC
#1 duration: 94.255µs
#1 started: 2018-09-05 19:30:53.900069076 +0000 UTC
#1 transferring dockerfile: 38B done
#2 ...
#2 local://context (.dockerignore)
#2 digest: sha256:cbf55954659905f4d7bd2fc3e5e52d566055eecd94fd7503565315022d834c21
#2 name: "local://context (.dockerignore)"
#2 started: 2018-09-05 19:30:53.899624016 +0000 UTC
#2 completed: 2018-09-05 19:30:53.899695455 +0000 UTC
#2 duration: 71.439µs
#2 started: 2018-09-05 19:30:53.899839335 +0000 UTC
#2 completed: 2018-09-05 19:30:54.359527504 +0000 UTC
#2 duration: 459.688169ms
#2 transferring context: 34B done
#1 local://dockerfile (Dockerfile)
#1 completed: 2018-09-05 19:30:54.592304408 +0000 UTC
#1 duration: 692.235332ms
#3 docker-image://docker.io/tonistiigi/copy:v0.1.3@sha256:e57a3b4d6240f55ba...
#3 digest: sha256:39386c91e9f27ee70b2eefdee12fc8a029bf5edac621b91eb5f3e6001d41dd4f
#3 name: "docker-image://docker.io/tonistiigi/copy:v0.1.3@sha256:e57a3b4d6240f55bac26b655d2cfb751f8b9412d6f7bb1f787e946391fb4b21b"
#3 started: 2018-09-05 19:30:54.731749377 +0000 UTC
#3 completed: 2018-09-05 19:30:54.732013326 +0000 UTC
#3 duration: 263.949µs
#5 docker-image://docker.io/library/openjdk:8-jdk-alpine
#5 digest: sha256:d680c6a82813d080081fbc3c024d21ddfa7ff995981cc7b4bfafe55edf80a319
#5 name: "docker-image://docker.io/library/openjdk:8-jdk-alpine"
#5 started: 2018-09-05 19:30:54.731483638 +0000 UTC
#5 completed: 2018-09-05 19:30:54.732480345 +0000 UTC
#5 duration: 996.707µs
#4 docker-image://docker.io/library/openjdk:8-jre-alpine
#4 digest: sha256:9ed31df4e6731a1718ea93bfa77354ad1ea2d1625c1cb16e2087d16d0b84bd00
#4 name: "docker-image://docker.io/library/openjdk:8-jre-alpine"
#4 started: 2018-09-05 19:30:54.73176516 +0000 UTC
#4 completed: 2018-09-05 19:30:54.732603067 +0000 UTC
#4 duration: 837.907µs
#7 local://context
#7 digest: sha256:efe765161a29e2bf7a41439cd2e6656fcf6fa6bc97da825ac9b5a0d8adecf1ac
#7 name: "local://context"
#7 started: 2018-09-05 19:30:54.73178732 +0000 UTC
#7 completed: 2018-09-05 19:30:54.731880943 +0000 UTC
#7 duration: 93.623µs
#7 started: 2018-09-05 19:30:54.792740019 +0000 UTC
#7 transferring context: 473B done
#7 completed: 2018-09-05 19:30:55.059008345 +0000 UTC
#7 duration: 266.268326ms
#9 /bin/sh -c mvn dependency:go-offline
#9 digest: sha256:2197672cd7a44d93e0dba40aa00d7ef41f8680226d91f469d1c925646bdc8d6d
#9 name: "/bin/sh -c mvn dependency:go-offline"
#9 started: 2018-09-05 19:30:55.203449147 +0000 UTC
#9 completed: 2018-09-05 19:30:55.203449147 +0000 UTC
#9 duration: 0s
#9 cached: true
#10 copy /src-0 java
#10 digest: sha256:36cf252c34be098731bd8c5fb3f273f9c1437a5f74a65a3555d71150c2092fa7
#10 name: "copy /src-0 java"
#10 started: 2018-09-05 19:30:55.203449147 +0000 UTC
#10 completed: 2018-09-05 19:30:55.203449147 +0000 UTC
#10 duration: 0s
#10 cached: true
#11 /bin/sh -c mvn package -Dmaven.test.skip=true
#11 digest: sha256:390464b1fdc7a4c833b3476033d95b7714e22bcbfd018469e97b04781cb41532
#11 name: "/bin/sh -c mvn package -Dmaven.test.skip=true"
#11 started: 2018-09-05 19:30:55.203449147 +0000 UTC
#11 completed: 2018-09-05 19:30:55.203449147 +0000 UTC
#11 duration: 0s
#11 cached: true
#12 copy /src-0/gs-spring-boot-docker-0.1.0.jar java/app.jar
#12 digest: sha256:a7d60191a720f80de72a77ebe0d4bd1b0fd55d44e623661e80916b7fd1952076
#12 name: "copy /src-0/gs-spring-boot-docker-0.1.0.jar java/app.jar"
#12 started: 2018-09-05 19:30:55.203449147 +0000 UTC
#12 completed: 2018-09-05 19:30:55.203555216 +0000 UTC
#12 duration: 106.069µs
#12 cached: true
#6 /bin/sh -c apk add --no-cache maven
#6 digest: sha256:db505db5e418f195c7bad3a710ad40bec3d91d47ff11a6f464b3ae37af744e7d
#6 name: "/bin/sh -c apk add --no-cache maven"
#6 started: 2018-09-05 19:30:55.203449147 +0000 UTC
#6 completed: 2018-09-05 19:30:55.203449147 +0000 UTC
#6 duration: 0s
#6 cached: true
#8 copy /src-0/pom.xml java/pom.xml
#8 digest: sha256:f032d4ff111c6ab0efef1a4e37d2467fffe43f48a529b8d56291ec81f96296ab
#8 name: "copy /src-0/pom.xml java/pom.xml"
#8 started: 2018-09-05 19:30:55.203449147 +0000 UTC
#8 completed: 2018-09-05 19:30:55.203449147 +0000 UTC
#8 duration: 0s
#8 cached: true
#13 exporting to image
#13 digest: sha256:d536dc2895c30fbde898bb4635581350a87c21f3695913ba21850a73d31422d9
#13 name: "exporting to image"
#13 started: 2018-09-05 19:30:55.203674127 +0000 UTC
#13 exporting layers done
#13 writing image sha256:d57028743ca10bb4d0527a294d5c83dd941aeb1033d4fe08949a135677846179 0.1s done
#13 naming to docker.io/library/java-test:latest
#13 completed: 2018-09-05 19:30:55.341300051 +0000 UTC
#13 duration: 137.625924ms
#13 naming to docker.io/library/java-test:latest 0.0s done
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