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Update docker.md (#2000)

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when you use `CMD ["/usr/local/bin/polkadot"]` in dockerfile, you don’t need to use `polkadot` while creating a container.
This commit is contained in:
aaron
2020-11-24 16:59:45 +08:00
committed by GitHub
parent 748cbfd820
commit 495172c585
1 changed files with 6 additions and 6 deletions
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polkadot/doc/docker.md
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@@ -7,29 +7,29 @@ the polkadot binary, pulled from our package repository.
Let´s first check the version we have. The first time you run this command, the polkadot docker image will be downloaded. This takes a bit of time and bandwidth, be patient:
```bash
docker run --rm -it parity/polkadot:latest polkadot --version
docker run --rm -it parity/polkadot:latest --version
```
You can also pass any argument/flag that polkadot supports:
```bash
docker run --rm -it parity/polkadot:latest polkadot --chain westend --name "PolkaDocker"
docker run --rm -it parity/polkadot:latest --chain westend --name "PolkaDocker"
```
Once you are done experimenting and picking the best node name :) you can start polkadot as daemon, exposes the polkadot ports and mount a volume that will keep your blockchain data locally:
```bash
docker run -d -p 30333:30333 -p 9933:9933 -v /my/local/folder:/data parity/polkadot:latest polkadot --chain westend
docker run -d -p 30333:30333 -p 9933:9933 -v /my/local/folder:/data parity/polkadot:latest --chain westend
```
Additionally if you want to have custom node name you can add the `--name "YourName"` at the end
```bash
docker run -d -p 30333:30333 -p 9933:9933 -v /my/local/folder:/data parity/polkadot:latest polkadot --chain westend --name "PolkaDocker"
docker run -d -p 30333:30333 -p 9933:9933 -v /my/local/folder:/data parity/polkadot:latest --chain westend --name "PolkaDocker"
```
```bash
docker run -d -p 30333:30333 -p 9933:9933 -v /my/local/folder:/data parity/polkadot:latest polkadot --rpc-external --chain westend
docker run -d -p 30333:30333 -p 9933:9933 -v /my/local/folder:/data parity/polkadot:latest --rpc-external --chain westend
```
If you want to connect to rpc port 9933, then must add polkadot startup parameter: `--rpc-external`.
@@ -70,7 +70,7 @@ If you run into issues with polkadot when using docker, please run the following
(replace the tag with the appropriate one if you do not use latest):
```bash
docker run --rm -it parity/polkadot:latest polkadot --version
docker run --rm -it parity/polkadot:latest --version
```
This will show you the polkadot version as well as the git commit ref that was used to build your container.