Release v1.2.0

Changelog

• a8bcd1a add docker build and release files
• e3d407e add docker port expose
• dbf1497 add packaging config
• d293513 fix docker build
• d159840 fix docker build
• d281635 fix dockerfile and specify arch
• 3fa84dc fix goreleaser missing config file for docker
• e933d38 give release workflow pkg write perms