添加 c9_docker运行halo.md

c9_docker运行halo.md

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+# docker运行halo
+博客
+## 获取镜像
+```
+docker pull swr.cn-north-4.myhuaweicloud.com/ddn-k8s/ghcr.io/halo-dev/halo:2.20
+docker tag  swr.cn-north-4.myhuaweicloud.com/ddn-k8s/ghcr.io/halo-dev/halo:2.20  ghcr.io/halo-dev/halo:2.20
+sudo docker rmi swr.cn-north-4.myhuaweicloud.com/ddn-k8s/ghcr.io/halo-dev/halo:2.20
+```
+
+
+## 启动镜像
+启动容器
+```
+docker run -d \
+  --name halo \
+  -p 8090:8090 \
+  -v ~/.halo2:/root/.halo2 \
+  --restart=unless-stopped \
+  ghcr.io/halo-dev/halo:2.20
+```