ryanwold.net - Civic Tech, Bitcoin, and Open Government Innovation

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Updated January 18, 2021.

# Docker Commands

I wanted to get Docker up and running on my Macbook so that I could
start to do some development on the BitcoinSV blockchain.

There is a [Dockerfile online](https://github.com/mrz1836/docker-bitcoinsv) that helps with setting up a BitcoinSV Node, currently version 1.0.6.

To get all of it working well together,
I had to iron out some issues during setup.

#### Updating where Docker stores files

On OSX, Docker stores files on the standard hard drive,
in a docker folder, something like /docker/containers...

I didn't want to fill up my hard drive with the whole bitcoinSV blockchain,
so I purchased an external hard drive.

To get Docker to store its files, specifically the `docker.raw` file on
my external hard drive, I had to select `File > Preferences > Disk` and
browse to the external hard drive location. On my external hard drive,
I created a `/bsv/docker` folder, which is where I browsed to, and selected.

#### Getting the docker container image running properly

I followed the instructions on https://github.com/mrz1836/docker-bitcoinsv, to:

1. create a Docker volume - which is like a hard drive, to store the files
1. create a Docker image - install BitcoinSV node on a Debian image
1. run the Docker image - run `bitcoind` which downloads all blocks, or from a specific block onward - and the blocks are indexed

#### Starting the Container

The command to list Docker containers is:

`docker ps -a`

Once the Container is created, it is assigned a Container `id`.
In my case, the Container ID is `83e4215d94f8`.
And I will be using that Container ID for the remainder of the example.

The command to start a Docker container is:

`docker start 83e4215d94f8`

`docker logs 83e4215d94f8`

The command to access the console within a running Docker Container is

`docker exec -it 83e4215d94f8 /bin/bash`

The command to restart the Docker Container is:

`docker restart 83e4215d94f8`

The command to stop the Docker Container is:

`docker stop 83e4215d94f8`

The command to copy a file from the Docker Container is:

`docker cp 83e4215d94f8:/bitcoinsv/raw_tx.bin ~/Desktop`

This results in `raw_tx.bin` living on my `~/Desktop`

#### Opening the raw bitcoin Tx with Ruby

This is an example of opening the raw bitcoin Tx with Ruby

rawtx1 = File.open("/users/ryan/Desktop/raw_tx.bin", 'rb') {|f| f.read}

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### Update August 18, 2023

If Docker doesn't start in OSX, even after clicking `Reset to factory defaults`.

For OSX, Docker's settings file is at `~/Library/Group Containers/group.com.docker/settings.json`

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