步驟：
（1）docker鏡像用docker-hub官方的：
docker pull ossrs/srs:3
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（2）然後用命令啓動容器：
docker run -d -p 1935:1935 -p 1985:1985 -v /usr/local/srs/conf/srs.conf:/usr/local/srs/conf/srs.conf -v /usr/local/srs/objs/srs.log:/usr/local/srs/objs/srs.log ossrs/srs:3
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結果報錯了：
docker: Error response from daemon: OCI runtime create failed: container_linux.go:349: starting container process caused "process_linux.go:449: container init caused \"rootfs_linux.go:58: mounting \\\"/usr/local/srs/conf/srs.conf\\\" to rootfs \\\"/var/lib/docker/overlay2/40fa56e129efeaaaba1f320949ccab4ed06635328cadc46bba76ce6863c14ef7/merged\\\" at \\\"/var/lib/docker/overlay2/40fa56e129efeaaaba1f320949ccab4ed06635328cadc46bba76ce6863c14ef7/merged/usr/local/srs/conf/srs.conf\\\" caused \\\"not a directory\\\"\"": unknown: Are you trying to mount a directory onto a file (or vice-versa)? Check if the specified host path exists and is the expected type.
看上面報錯是因爲掛載目錄報錯了，把掛載的目錄去掉再試試：
docker run -d -p 1935:1935 -p 1985:1985 ossrs/srs:3
這樣啓動成功了，並返回了容器的ID。
然後再解決srs.conf掛載的問題(2050f663ee02是容器ID，容器ID可用docker ps命令進行查詢)：
將srs/objs/目錄下面已經生成的srs.log目錄刪除。
cd /usr/local/srs/conf
docker cp 2050f663ee02:/usr/local/srs/conf/srs.conf .
cd /usr/local/srs/objs
docker cp 2050f663ee02:/usr/local/srs/objs/srs.log .
將啓動的容器刪除掉：
docker rm -f 2050f663ee02
然後再重新啓動：
docker run -d -p 1935:1935 -p 1985:1985 -v /usr/local/srs/conf/srs.conf:/usr/local/srs/conf/srs.conf -v /usr/local/srs/objs/srs.log:/usr/local/srs/objs/srs.log ossrs/srs:3
這次就啓動成功了：