Missing docs changes from kontena/kontena repo #1
Description
Since the "fork" there has been quite a few PRs on https://github.com/kontena/kontena that have changed docs. This issue is to collect them into one list. We shall create a PR for each of those to re-port the docs into new repo.
* CLI: Removed the app subcommand, it is now available as a plugin (kontena/kontena#2675) removed already in docs re-work
- Agent: Allow overriding KONTENA_NODE_NAME (Agent: Allow overriding KONTENA_NODE_NAME kontena#2693), see Backport kontena/kontena#2693 #2
- Node scheduling availability (Node scheduling availability kontena#2306), see Backport kontena/kontena#2306 docs #3
- Add v4auth to create registry with s3 driver (Add v4auth to create registry with s3 driver kontena#2242), see Backport kontena/kontena#2242 #4
- Add support for soft affinities (Soft affinity kontena#2540), see Add affinities docs #5
- Configurable agent node ID, labels (Configurable agent node ID, labels kontena#2590), see Backport kontena/kontena#2590 #6
- Ubuntu kontena-agent: Use /usr/bin/dockerd for compatibility with Docker 1.12 - 17.06 (Ubuntu kontena-agent: Use /usr/bin/dockerd for compatibility with Docker 1.12 - 17.06 kontena#2589), see Backport kontena/kontena#2589 #7
- Rewrite agent websocket client (Rewrite agent websocket client kontena#2560), see Backport kontena/kontena#2560 #8
- Add new user_admin role (Add new user_admin role kontena#2577), see Backport kontena/kontena#2577 #9
- Create HostNode with per-node token for websocket auth (Create HostNode with per-node token for websocket auth kontena#2504)