Docker + FastAPI 零基础完全指南

print(:"dasis":sjjwe23sxe)

# 检查 Docker 版本
docker --version

# 运行测试容器
docker run hello-world
2024-10-29 11:33:06
2024-10-29 11:33:06  Hello from Docker!
2024-10-29 11:33:06  This message shows that your installation appears to be working correctly.
2024-10-29 11:33:06 
2024-10-29 11:33:06  To generate this message, Docker took the following steps:
2024-10-29 11:33:06  1. The Docker client contacted the Docker daemon.
2024-10-29 11:33:06  2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
2024-10-29 11:33:06     (arm64v8)
2024-10-29 11:33:06  3. The Docker daemon created a new container from that image which runs the
2024-10-29 11:33:06     executable that produces the output you are currently reading.
2024-10-29 11:33:06  4. The Docker daemon streamed that output to the Docker client, which sent it
2024-10-29 11:33:06     to your terminal.
2024-10-29 11:33:06 
2024-10-29 11:33:06  To try something more ambitious, you can run an Ubuntu container with:
2024-10-29 11:33:06  $ docker run -it ubuntu bash
2024-10-29 11:33:06 
2024-10-29 11:33:06  Share images, automate workflows, and more with a free Docker ID:
2024-10-29 11:33:06  https://hub.docker.com/
2024-10-29 11:33:06 
2024-10-29 11:33:06  For more examples and ideas, visit:
2024-10-29 11:33:06  https://docs.docker.com/get-started/
2024-10-29 11:33:06

# 拉取镜像
docker pull memos/memos:latest

# 运行镜像
docker run -d --name memos -p 5236:5236 memos/memos:latest\

# 访问memos
http://localhost:5236

# 为你的Fastapi的项目编写DockerFile
# 使用Python 3.10.5精简版作为基础镜像
FROM python:3.10.5-slim-buster

# 设置工作目录为根目录
WORKDIR /

# 安装FastAPI和uvicorn依赖
RUN pip install fastapi uvicorn

# 将当前目录下的所有文件复制到容器中
COPY . .

# 声明容器将监听的端口号为8000
EXPOSE 8000

# 容器启动时执行的命令,启动uvicorn服务器运行FastAPI应用
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]

# 使用Python 3.10.5精简版作为基础镜像
FROM registry.cn-hangzhou.aliyuncs.com/strangerbell/python:3.10.13-slim-bullseye

# 设置工作目录为根目录
WORKDIR /

# 安装FastAPI和uvicorn依赖
RUN pip install -i https://mirrors.aliyun.com/pypi/simple/ fastapi uvicorn

# 将当前目录下的所有文件复制到容器中
COPY . .

# 声明容器将监听的端口号为8000
EXPOSE 8000

# 容器启动时执行的命令,启动uvicorn服务器运行FastAPI应用
CMD ["uvicorn",  "main:app", "--host", "0.0.0.0", "--port", "8000"]

# 使用DockerFile构建镜像

# docker build: 构建Docker镜像的命令
# -t: 为镜像指定标签名称(tag)
# my-fastapi-app: 镜像名称
# :latest: 镜像的标签,latest表示最新版本
# . : 构建上下文路径,表示使用当前目录作为构建上下文
docker build -t my-fastapi-app:latest .

# 运行镜像

# 运行Docker容器,各参数说明:
# -d: 以守护进程(后台)模式运行容器
# --name: 为容器指定一个名称,这里命名为"my-fastapi-app" 
# -p: 端口映射,格式为"主机端口:容器端口",这里将主机的9999端口映射到容器的9999端口
# my-fastapi-app:latest: 指定要运行的镜像名称和标签

docker run -d --name my-fastapi-app -p 1280:9999 my-fastapi-app:latest

# 找到Docker所在文件
在Docker桌面端点击容器
查看容器文件

# 查看电脑上当前所有的镜像
docker images

# 查看当前正在运行的容器
docker ps

# 查看所有的容器
docker ps -a

# 查看Docker日志
docker logs -f my-fastapi-app

# 停止Docker容器
docker stop my-fastapi-app

# 删除Docker容器
docker rm my-fastapi-app