🐴 🙌🏽 ⛪️ Quelques conseils sur la façon d'accélérer l'assemblage d'images Docker. Par exemple, jusqu'à 30 secondes 🌥️ 👩🏽‍🎓 ✈️

Avant la mise en vente de la fonctionnalité, à notre époque, les orchestrateurs complexes et CI / CD ont un long chemin à parcourir de la validation au test et à la livraison. Auparavant, il était possible de télécharger de nouveaux fichiers via FTP (personne d'autre ne le fait, non?), Et le processus de déploiement prenait quelques secondes. Vous devez maintenant créer une demande de fusion et attendre un temps considérable jusqu'à ce que la fonctionnalité atteigne les utilisateurs.

Une partie de ce voyage consiste à créer une image Docker. Parfois, l'assemblage dure quelques minutes, parfois des dizaines de minutes, ce qui peut difficilement être qualifié de normal. Dans cet article, nous prenons une application simple que nous emballons dans une image, appliquons plusieurs méthodes pour accélérer l'assemblage et considérons les nuances de ces méthodes.

: , The Bell, " ", Republic… , Reminder. , .

GitLab. , GitLab Registry . — . : 14 .

, , , . 30 !

, Reminder', Angular. , :

ng n app

PWA ( ):

ng add @angular/pwa --project app

npm-, , docker-. Docker , . . , . , , , . — . , Dockerfile:

FROM node:12.16.2
WORKDIR /app
COPY . .
RUN npm ci
RUN npm run build --prod

Dockerfile — ; , Docker . . — .

: . , . , . , :

, .
docker rmi $(docker images -q)
.
time docker build -t app .
src/index.html — .
.
time docker build -t app .

( ), . — , . , — , — , , . , . , .

Dockerfile, , . .

$ time docker build -t app .
Sending build context to Docker daemon 409MB
Step 1/5 : FROM node:12.16.2
Status: Downloaded newer image for node:12.16.2
Step 2/5 : WORKDIR /app
Step 3/5 : COPY . .
Step 4/5 : RUN npm ci
added 1357 packages in 22.47s
Step 5/5 : RUN npm run build --prod
Date: 2020-04-16T19:20:09.664Z - Hash: fffa0fddaa3425c55dd3 - Time: 37581ms
Successfully built c8c279335f46
Successfully tagged app:latest

real 5m4.541s
user 0m0.000s
sys 0m0.000s

src/index.html .

$ time docker build -t app .
Sending build context to Docker daemon 409MB
Step 1/5 : FROM node:12.16.2
Step 2/5 : WORKDIR /app
 ---> Using cache
Step 3/5 : COPY . .
Step 4/5 : RUN npm ci
added 1357 packages in 22.47s
Step 5/5 : RUN npm run build --prod
Date: 2020-04-16T19:26:26.587Z - Hash: fffa0fddaa3425c55dd3 - Time: 37902ms
Successfully built 79f335df92d3
Successfully tagged app:latest

real 3m33.262s
user 0m0.000s
sys 0m0.000s

, , docker images:

REPOSITORY   TAG      IMAGE ID       CREATED              SIZE
app          latest   79f335df92d3   About a minute ago   1.74GB

Sending build context to Docker daemon 409MB. build. — «.», — , . 409 — : , .

, . , , . , : . .dockerignore , :

.git
/node_modules

$ time docker build -t app .
Sending build context to Docker daemon 607.2kB
Step 1/5 : FROM node:12.16.2
Step 2/5 : WORKDIR /app
 ---> Using cache
Step 3/5 : COPY . .
Step 4/5 : RUN npm ci
added 1357 packages in 22.47s
Step 5/5 : RUN npm run build --prod
Date: 2020-04-16T19:33:54.338Z - Hash: fffa0fddaa3425c55dd3 - Time: 37313ms
Successfully built 4942f010792a
Successfully tagged app:latest

real 1m47.763s
user 0m0.000s
sys 0m0.000s

607.2 — , 409 . 1.74 1.38:

REPOSITORY   TAG      IMAGE ID       CREATED         SIZE
app          latest   4942f010792a   3 minutes ago   1.38GB

Alpine

— . — , . FROM Dockerfile. Ubuntu, nodejs. …

$ docker images -a | grep node
node 12.16.2 406aa3abbc6c 17 minutes ago 916MB

… . , Alpine Linux. Alpine — . - nodejs alpine 88.5 . :

FROM node:12.16.2-alpine3.11
RUN apk --no-cache --update --virtual build-dependencies add \
    python \
    make \
    g++
WORKDIR /app
COPY . .
RUN npm ci
RUN npm run build --prod

, . , Angular ¯(°_o)/¯

619 :

REPOSITORY   TAG      IMAGE ID       CREATED          SIZE
app          latest   aa031edc315a   22 minutes ago   761MB

, , .

$ docker run app ls -lah
total 576K
drwxr-xr-x 1 root root 4.0K Apr 16 19:54 .
drwxr-xr-x 1 root root 4.0K Apr 16 20:00 ..
-rwxr-xr-x 1 root root 19 Apr 17 2020 .dockerignore
-rwxr-xr-x 1 root root 246 Apr 17 2020 .editorconfig
-rwxr-xr-x 1 root root 631 Apr 17 2020 .gitignore
-rwxr-xr-x 1 root root 181 Apr 17 2020 Dockerfile
-rwxr-xr-x 1 root root 1020 Apr 17 2020 README.md
-rwxr-xr-x 1 root root 3.6K Apr 17 2020 angular.json
-rwxr-xr-x 1 root root 429 Apr 17 2020 browserslist
drwxr-xr-x 3 root root 4.0K Apr 16 19:54 dist
drwxr-xr-x 3 root root 4.0K Apr 17 2020 e2e
-rwxr-xr-x 1 root root 1015 Apr 17 2020 karma.conf.js
-rwxr-xr-x 1 root root 620 Apr 17 2020 ngsw-config.json
drwxr-xr-x 1 root root 4.0K Apr 16 19:54 node_modules
-rwxr-xr-x 1 root root 494.9K Apr 17 2020 package-lock.json
-rwxr-xr-x 1 root root 1.3K Apr 17 2020 package.json
drwxr-xr-x 5 root root 4.0K Apr 17 2020 src
-rwxr-xr-x 1 root root 210 Apr 17 2020 tsconfig.app.json
-rwxr-xr-x 1 root root 489 Apr 17 2020 tsconfig.json
-rwxr-xr-x 1 root root 270 Apr 17 2020 tsconfig.spec.json
-rwxr-xr-x 1 root root 1.9K Apr 17 2020 tslint.json

docker run app ls -lah app ls -lah, .

dist. - . - HTTP- nodejs. . , «». ! . nginx, dist :

server {
    listen 80 default_server;
    server_name localhost;
    charset utf-8;
    root /app/dist;

    location / {
        try_files $uri $uri/ /index.html;
    }
}

multi-stage build. Dockerfile:

FROM node:12.16.2-alpine3.11 as builder
RUN apk --no-cache --update --virtual build-dependencies add \
    python \
    make \
    g++
WORKDIR /app
COPY . .
RUN npm ci
RUN npm run build --prod

FROM nginx:1.17.10-alpine
RUN rm /etc/nginx/conf.d/default.conf
COPY nginx/static.conf /etc/nginx/conf.d
COPY --from=builder /app/dist/app .

FROM Dockerfile, . builder, FROM . nginx. :

REPOSITORY   TAG      IMAGE ID       CREATED          SIZE
app          latest   2c6c5da07802   29 minutes ago   36MB

, :

docker run -p8080:80 app

-p8080:80 8080 80 , nginx. http://localhost:8080/ . !

1.74 36 . .

$ time docker build -t app .
Sending build context to Docker daemon 608.8kB
Step 1/11 : FROM node:12.16.2-alpine3.11 as builder
Step 2/11 : RUN apk --no-cache --update --virtual build-dependencies add python make g++
 ---> Using cache
Step 3/11 : WORKDIR /app
 ---> Using cache
Step 4/11 : COPY . .
Step 5/11 : RUN npm ci
added 1357 packages in 47.338s
Step 6/11 : RUN npm run build --prod
Date: 2020-04-16T21:16:03.899Z - Hash: fffa0fddaa3425c55dd3 - Time: 39948ms
 ---> 27f1479221e4
Step 7/11 : FROM nginx:stable-alpine
Step 8/11 : WORKDIR /app
 ---> Using cache
Step 9/11 : RUN rm /etc/nginx/conf.d/default.conf
 ---> Using cache
Step 10/11 : COPY nginx/static.conf /etc/nginx/conf.d
 ---> Using cache
Step 11/11 : COPY --from=builder /app/dist/app .
Successfully built d201471c91ad
Successfully tagged app:latest

real 2m17.700s
user 0m0.000s
sys 0m0.000s

( Using cache). RUN npm ci — 47.338s. , ? , . , , , . , , , , , ! Dockerfile.

FROM node:12.16.2-alpine3.11 as builder
RUN apk --no-cache --update --virtual build-dependencies add \
    python \
    make \
    g++
WORKDIR /app
COPY package*.json ./
RUN npm ci
COPY . .
RUN npm run build --prod

FROM nginx:1.17.10-alpine
RUN rm /etc/nginx/conf.d/default.conf
COPY nginx/static.conf /etc/nginx/conf.d
COPY --from=builder /app/dist/app .

package.json package-lock.json, , . :

$ time docker build -t app .
Sending build context to Docker daemon 608.8kB
Step 1/12 : FROM node:12.16.2-alpine3.11 as builder
Step 2/12 : RUN apk --no-cache --update --virtual build-dependencies add python make g++
 ---> Using cache
Step 3/12 : WORKDIR /app
 ---> Using cache
Step 4/12 : COPY package*.json ./
 ---> Using cache
Step 5/12 : RUN npm ci
 ---> Using cache
Step 6/12 : COPY . .
Step 7/12 : RUN npm run build --prod
Date: 2020-04-16T21:29:44.770Z - Hash: fffa0fddaa3425c55dd3 - Time: 38287ms
 ---> 1b9448c73558
Step 8/12 : FROM nginx:stable-alpine
Step 9/12 : WORKDIR /app
 ---> Using cache
Step 10/12 : RUN rm /etc/nginx/conf.d/default.conf
 ---> Using cache
Step 11/12 : COPY nginx/static.conf /etc/nginx/conf.d
 ---> Using cache
Step 12/12 : COPY --from=builder /app/dist/app .
Successfully built a44dd7c217c3
Successfully tagged app:latest

real 0m46.497s
user 0m0.000s
sys 0m0.000s

46 3 — ! : , , , , — , .

CI/CD .

- SaaS-, . , .

GitHub Actions.

on:
  push:
    branches:
      - master

name: Test docker build

jobs:
  deploy:
    name: Build
    runs-on: ubuntu-latest
    env:
      IMAGE_NAME: docker.pkg.github.com/${{ github.repository }}/app
      IMAGE_TAG: ${{ github.sha }}

    steps:
    - name: Checkout
      uses: actions/checkout@v2

    - name: Login to GitHub Packages
      env:
        TOKEN: ${{ secrets.GITHUB_TOKEN }}
      run: |
        docker login docker.pkg.github.com -u $GITHUB_ACTOR -p $TOKEN

    - name: Build
      run: |
        docker build \
          -t $IMAGE_NAME:$IMAGE_TAG \
          -t $IMAGE_NAME:latest \
          .

    - name: Push image to GitHub Packages
      run: |
        docker push $IMAGE_NAME:latest
        docker push $IMAGE_NAME:$IMAGE_TAG

    - name: Logout
      run: |
        docker logout docker.pkg.github.com

GitHub Packages 20 :

, :

on:
  push:
    branches:
      - master

name: Test docker build

jobs:
  deploy:
    name: Build
    runs-on: ubuntu-latest
    env:
      IMAGE_NAME: docker.pkg.github.com/${{ github.repository }}/app
      IMAGE_TAG: ${{ github.sha }}

    steps:
    - name: Checkout
      uses: actions/checkout@v2

    - name: Login to GitHub Packages
      env:
        TOKEN: ${{ secrets.GITHUB_TOKEN }}
      run: |
        docker login docker.pkg.github.com -u $GITHUB_ACTOR -p $TOKEN

    - name: Pull latest images
      run: |
        docker pull $IMAGE_NAME:latest || true
        docker pull $IMAGE_NAME-builder-stage:latest || true

    - name: Images list
      run: |
        docker images

    - name: Build
      run: |
        docker build \
          --target builder \
          --cache-from $IMAGE_NAME-builder-stage:latest \
          -t $IMAGE_NAME-builder-stage \
          .
        docker build \
          --cache-from $IMAGE_NAME-builder-stage:latest \
          --cache-from $IMAGE_NAME:latest \
          -t $IMAGE_NAME:$IMAGE_TAG \
          -t $IMAGE_NAME:latest \
          .

    - name: Push image to GitHub Packages
      run: |
        docker push $IMAGE_NAME-builder-stage:latest
        docker push $IMAGE_NAME:latest
        docker push $IMAGE_NAME:$IMAGE_TAG

    - name: Logout
      run: |
        docker logout docker.pkg.github.com

, build. , - . . Docker c nodejs ( builder). , $IMAGE_NAME-builder-stage GitHub Packages, .

. .

— Dockerfile, , Container Registry .

nodejs Angular-. Dockerfile.node

FROM node:12.16.2-alpine3.11
RUN apk --no-cache --update --virtual build-dependencies add \
    python \
    make \
    g++

Docker Hub:

docker build -t exsmund/node-for-angular -f Dockerfile.node .
docker push exsmund/node-for-angular:latest

Dockerfile :

FROM exsmund/node-for-angular:latest as builder
...

, , .

-. , , :

;
;
-;
Dockerfile, ;
CI/CD-;
.

, , Docker, . , , https://github.com/devopsprodigy/test-docker-build.

Quelques conseils sur la façon d'accélérer l'assemblage d'images Docker. Par exemple, jusqu'à 30 secondes

Alpine

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