针对docker容器中的Localstack运行shell脚本

Question

我一直在使用localstack开发一个针对本地的服务。我刚刚通过docker run --rm -p 4567-4583:4567-4583 -p 8080:8080 localstack/localstack运行了他们的docker图像

然后，我手动运行一个小脚本来设置我的S3存储桶、SQS队列等。

现在，我想让其他人更容易，所以我想我只需要添加一个Dockerfile和docker-compose.yml文件。不幸的是，当我尝试启动并运行它时，使用docker-compose up时，我得到了一个错误，即我的安装脚本中的命令无法连接到本地堆栈服务。

make_bucket failed: s3://localbucket Could not connect to the endpoint URL: "http://localhost:4572/localbucket"

Dockerfile：

FROM localstack/localstack

#since this is just local dev set up, localstack doesn't require 
anything specific here.
ENV AWS_DEFAULT_REGION='[useast1]'
ENV AWS_ACCESS_KEY_ID='[lloyd]'
ENV AWS_SECRET_ACCESS_KEY='[christmas]'

COPY bin/localSetup.sh /localSetup.sh
COPY fixtures/notifications.json /notifications.json
RUN ["chmod", "+x", "/localSetup.sh"]
RUN pip install awscli

# expose service & web dashboard ports
EXPOSE 4567-4582 8080

ENTRYPOINT ["/localSetup.sh"]

docker-compose.yml

version: '3'
services:
  localstack:
    build: .
    ports:
      - "8080:8080"
      - "4567-4582:4567-4582"

localSetup.sh

#!/bin/bash

aws --endpoint-url=http://localhost:4572 s3 mb s3://localbucket
#additional similar calls but left off for brevity

我尝试在我的脚本命令中将localhost切换到127.0.0.1，但最终得到了相同的错误。我可能漏掉了一些愚蠢的东西。

Answer 1

由于您已经有了资源的create your custom AWS resources when localstack freshly start up.脚本，因此还有另一种方法可以将脚本卷挂载到/docker-entrypoint-initaws.d/。所以我的组合文件是：

localstack:
    image: localstack/localstack:latest
    container_name: localstack_aws
ports:
      - '4563-4599:4563-4599'
      - '8055:8080'
environment:
      - SERVICES=s3
      - DEFAULT_REGION=us-east-1
volumes:
      - './localSetup.sh:/docker-entrypoint-initaws.d/make-s3.sh'

此外，我更喜欢在bash脚本中使用awslocal而不是aws --endpoint，因为它可以为您利用凭据工作和端点。

Answer 2

尝试将hostname添加到docker-compose文件，并编辑您的入口点文件以反映该主机名。

docker-compose.yml

version: '3'
services:
  localstack:
    build: .
    hostname: localstack
    ports:
      - "8080:8080"
      - "4567-4582:4567-4582"

localSetup.sh

#!/bin/bash

aws --endpoint-url=http://localstack:4572 s3 mb s3://localbucket

这是我用来测试使用本地堆栈的应用程序的docker-compose-dev.yaml。我使用了命令docker-compose -f docker-compose-dev.yaml up，我也使用了与您使用的相同的localSetup.sh。

version: '3'
services:

  localstack:
    image: localstack/localstack
    hostname: localstack
    ports:
      - "4567-4584:4567-4584"
      - "${PORT_WEB_UI-8082}:${PORT_WEB_UI-8082}"
    environment:
      - SERVICES=s3
      - DEBUG=1
      - DATA_DIR=${DATA_DIR- }
      - PORT_WEB_UI=${PORT_WEB_UI- }
      - DOCKER_HOST=unix:///var/run/docker.sock
    volumes:
      - "${TMPDIR:-/tmp/localstack}:/tmp/localstack"
      - "/var/run/docker.sock:/var/run/docker.sock"
    networks:
      - backend

  sample-app:
    image: "sample-app/sample-app:latest"
    networks:
      - backend
    links:
      - localstack
    depends_on:
      - "localstack"

networks: 
  backend:
    driver: 'bridge'