v1.4.1 add Docker Support

Routine bug fix / Docker Support / English Docs

Now docker is enabled on meta node by default. You can launch ton's of SaaS with it

English document is available now.

• add docker to default packages
• add docker-compose to default pacakge list
• disable nameserver by default & enable docker role by default

Bug Fix

• fix promtail & loki config var issue
• Fix grafana legacy alerts.
• Disable nameserver by default
• Rename pg-alias.sh for patroni shortcuts
• disable exemplars queries for all dashboards
• fix loki data dir issue #100
• change autovacuum_freeze_max_age from 100000000 to 1000000000

MD5 (pigsty.tgz) = 6f2db6af16e96a6842f28e299f98b96b
MD5 (pkg.tgz) = 9a8da6b926b2742bc37a8a339401f47a
MD5 (app.tgz) = b9a3de9cdea10cfaedf3316941a089ad
MD5 (matrix.tgz) = 3d063437c482d94bd7e35df1a08bbc84