Great Article! Very interested in using containers with SQL Server. It was driving me nuts because I was running into errors, but it looks like the environment variable for SQLCMD changed since your posting. The SA_PASSWORD is now MSSQL_SA_PASSWORD. It's crazy how fast this stuff is changing. Thank you again it was awesome experience getting this setup and testing!
Great article! I found your blog post and repo a couple of weeks ago and was able to get the AG up and running and disprove a theory within half an hour. Don't know how long it would have taken to do the same thing if I'd had ot do separate SQL installs! Very grateful to you!