英文:
How can I connect to a docker container in github actions?
问题
我正在尝试使用GitHub Actions设置单元测试工作流程。
单元测试必须使用一个Docker容器。
在我的工作流程中，我拉取并运行Docker镜像（在后台），然后运行一个本地的Go应用程序，通过与其交互来运行测试。
docker pull xxxx.dkr.ecr.us-west-2.amazonaws.com/my-container
docker run -d xxxx.dkr.ecr.us-west-2.amazonaws.com/my-container
sleep 10 # 确保容器设置完成
docker exec my-container apk add curl
docker exec my-container curl http://localhost:1234 -I
go test .
我能够通过docker exec进入容器并检查它是否成功运行，所以我知道容器实际上是工作的。
单元测试在本地工作，但是在GitHub Actions中，当尝试连接到Docker容器时，我的Go应用程序会报错，无论主机名是什么：
Post "http://127.0.0.1:1234": dial tcp 127.0.0.1:1234: connect: connection refused
Post "http://localhost:1234": dial tcp [::1]:1234: connect: connection refused
即使在使用名称运行容器并尝试连接后，我仍然会收到错误：
Post "http://my-container:1234": dial tcp: lookup my-container: Temporary failure in name resolution
我相信更简单的解决方案是使用GitHub Actions的services来运行容器，但是我无法弄清楚如何从私有ECR中拉取。
感谢任何帮助！
英文:
I'm trying to setup a unit test workflow with github actions.
There is a docker container that the unit test must use.
In my workflow, I pull and run the docker image (in the background), then run a local go application that runs tests by interacting with it.
docker pull xxxx.dkr.ecr.us-west-2.amazonaws.com/my-container
docker run -d xxxx.dkr.ecr.us-west-2.amazonaws.com/my-container
sleep 10 # make sure container setup finishes
docker exec my-container apk add curl
docker exec my-container curl http://localhost:1234 -I
go test .
I'm able to docker exec into the container and check if it's running successfully, so I know the container is actually working.
The unit test works locally, however in github actions I receive an error from my go app when trying to connect to the docker container, regardless of host name:
Post "http://127.0.0.1:1234": dial tcp 127.0.0.1:1234: connect: connection refused
Post "http://localhost:1234": dial tcp [::1]:1234: connect: connection refused
Even after running the container with a name and trying to connect I get an error:
Post "http://my-container:1234": dial tcp: lookup my-container: Temporary failure in name resolution
I believe the simpler solution is using github actions services to run the container, however I couldn't figure out how to pull from a private ECR.
Appreciate any help!
答案1
得分: 3
我解决了我的问题，尽管我在 Dockerfile 中使用了 EXPOSE，但我还需要使用端口标志 docker run -p 1234:1234 ... 在主机上访问它。
英文:
I figured out my problem, even though I had EXPOSE in the Dockerfile, I needed to run the container with the ports flag docker run -p 1234:1234 ... to access it from host.
答案2
得分: 0
你好！以下是你要翻译的内容：
jobs:
dump-database:
runs-on: ubuntu-latest
container: ubuntu
services:
anonymizer:
image: anonymizer:latest
env:
POSTGRES_PASSWORD: ${{ secrets.DATABASE_PASSWORD }}
ports:
- 5432:5432
steps:
- name: Dump database
run: |
curl anonymizer:5432/dump > dump.sql
head -n 150 dump.sql
请稍等片刻，我会为你进行翻译。
英文:
jobs:
dump-database:
runs-on: ubuntu-latest
container: ubuntu
services:
anonymizer:
image: anonymizer:latest
env:
POSTGRES_PASSWORD: ${{ secrets.DATABASE_PASSWORD }}
ports:
- 5432:5432
steps:
- name: Dump database
run: |
curl anonymizer:5432/dump > dump.sql
head -n 150 dump.sql
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