Multi arch docker support

[junior]

Fixes issue #82

Extends Docker support to Multi-arch images, including linux/amd64 and linux/arm64 platforms, allowing run Ticker on arm, like Docker on Apple Silicon and Docker on Raspberry Pi

Also introduces easy address for docker runs:

docker run -it --rm achannarasappa/ticker -w BTC-USD,AAPL,TSLA

docker run -it --rm goticker/ticker -w BTC-USD,AAPL,TSLA

https://hub.docker.com/r/goticker/ticker

[achannarasappa]

Thanks for this contribution @junior ! I know there's been a couple other users who've request Apple M1 support so I'm sure they'll appreciate this

I'd make a few suggestions:

1. Include a "default" tag with 64bit support and no suffix (still include version suffices)
2. Retain the original repository (achannarasappa)

Also could you describe how you've tested this build and releases properly?

[junior]

1. Include a "default" tag with 64bit support and no suffix (still include version suffices)

The default tag is included, if you run docker run -it --rm achannarasappa/ticker -w BTC-USD,AAPL,TSLA will use the tag latest.

This is a multi-arch docker manifest image, and includes amd64 and arm64 platforms on the same. The image will looks like that:

The scripts is generating the server and latest
e.g.:

• latest
• 3.0.3
• 3.0
• 3

The image templates (3.0.3-amd64 and 3.0.3-arm64v8) are just the image templates of each platform for the docker manifest

2. Retain the original repository (achannarasappa)

Updated. Please consider to move to a Docker Hub organization in the future. ;)

If you decided to use the goticker in the future, you have full rights as owner of the org.

Also could you describe how you've tested this build and releases properly?

Goreleaser run on my repo with no problems. Manually tested with docker on Intel MacBook Pro, Apple Silicon Mac mini and Raspberry Pi 4.

[achannarasappa]

Thanks for the details - this looks good to me