docker --user
时间: 2023-09-30 08:04:49 浏览: 171
Docker --user选项可以指定容器中运行进程的用户身份。这个选项可以在运行容器时使用,例如:
```
docker run --user=username image_name command
```
其中,--user=username指定了容器中运行进程的用户身份为username。image_name是要运行的Docker镜像的名称,command则是在容器中要执行的命令。
如果不指定--user选项,则默认情况下容器中的进程会以root用户身份运行。这可能会带来安全风险,因为root用户拥有容器中的所有权限。因此,在实际使用中,应该尽可能地指定非root用户来运行容器中的进程。
相关问题
sentry docker-compose
sentry是一个开源的错误追踪平台,可以帮助开发者实时监控应用程序中的错误和异常。docker-compose是Docker官方提供的一个工具,可以通过一个YAML文件来定义、运行多个Docker容器。
如果想在本地使用sentry,可以使用docker-compose来快速搭建sentry服务。具体步骤如下:
1. 创建一个目录,用于存放docker-compose.yml文件和其他相关文件。
2. 在该目录下创建docker-compose.yml文件,并添加以下内容:
```
version: '3'
services:
sentry:
image: sentry
ports:
- "9000:9000"
environment:
SENTRY_SECRET_KEY: <your-secret-key>
SENTRY_POSTGRES_HOST: postgres
SENTRY_DB_USER: <your-db-user>
SENTRY_DB_PASSWORD: <your-db-password>
SENTRY_REDIS_HOST: redis
depends_on:
- postgres
- redis
postgres:
image: postgres
environment:
POSTGRES_USER: <your-db-user>
POSTGRES_PASSWORD: <your-db-password>
redis:
image: redis
```
3. 替换<your-secret-key>、<your-db-user>和<your-db-password>为你自己的值。
4. 在终端中进入该目录,并运行以下命令启动服务:
```
docker-compose up -d
```
5. 访问http://localhost:9000即可访问sentry服务。
docker-compose configs
Docker Compose configs are used to define and configure multi-container Docker applications. With Docker Compose, you can specify the services, networks, volumes, and other configurations required for your application in a single YAML file called `docker-compose.yml`.
In the `docker-compose.yml` file, you can define multiple services, each representing a container in your application. Each service can have its own configuration, such as the image to use, environment variables, ports to expose, volumes to mount, etc.
Here's an example of a simple `docker-compose.yml` file:
```yaml
version: '3'
services:
web:
image: nginx:latest
ports:
- 80:80
volumes:
- ./html:/usr/share/nginx/html
db:
image: mysql:latest
environment:
- MYSQL_ROOT_PASSWORD=secret
- MYSQL_DATABASE=mydb
- MYSQL_USER=myuser
- MYSQL_PASSWORD=mypassword
```
In this example, two services are defined: `web` and `db`. The `web` service uses the `nginx` image, exposes port 80 on the host, and mounts a local directory `./html` to the container's `/usr/share/nginx/html` directory. The `db` service uses the `mysql` image and sets some environment variables for configuration.
You can use the `docker-compose` command-line tool to manage and interact with your Docker Compose application. For example, you can start the application using `docker-compose up`, stop it using `docker-compose down`, or view logs using `docker-compose logs`.
I hope this helps! Let me know if you have any more questions.