For version format x.y.z, three tags as below
tag: x.y.z
tag1: x.y
tag2: x
They all point to the latest image.
Once app got updated (minor updates, z to z1), the tag x.y.z
will be replaced by x.y.z1, but the tag x or x.y may still
keep.
Signed-off-by: Qi Zheng <qi.zheng@intel.com>
and nginx, postgres, ...
Two tags are to be added for each containers.
1. exact app version tag, usually format as x.y.z.
For example, 5.0.6 for redis.
2. major app version tag, usually format as x.
For example, 5 for redis.
For some special cases, the major format as x.y.
For example, 1.17 for nginx, 3.7 for python.
Signed-off-by: Qi Zheng <qi.zheng@intel.com>
