Many thanks!

Chao Zhang
https://github.com/tokers

On November 22, 2020 at 3:53:28 PM, Peter Zhu ([email protected]) wrote:

Hi, I think I can try to implement an admin API in Dashboard backend, as
Chao Zhang said.


在 2020年11月22日 +0800 PM3:16,Zhiyuan Ju <[email protected]>,写道:
> Anyone would like to take care of the manager-api?
>
> Chao Zhang <[email protected]> 于 2020年11月22日周日 下午1:58写道:
>
> > OK, let me focus on the APISIX side, however we still need someone to
> > devote to the development of manager-api.
> >
> > Chao Zhang
> > https://github.com/tokers
> >
> > On November 21, 2020 at 8:53:46 PM, Ming Wen ([email protected])
wrote:
> >
> > > I will vote for the first one, which is much simpler.
> >
> > +1 for this.
> >
> > Thanks,
> > Ming Wen, Apache APISIX PMC Chair
> > Twitter: _WenMing
> >
> >
> > Zexuan Luo <[email protected]> 于2020年11月21日周六 上午11:04写道:
> >
> > > > 1. APISIX writes the status data into etcd periodically;
> > > > 2. Introduce another control plane component, let APISIX transmits
> > > status data to it and the control plane component will write them to
> > > etcd.
> > >
> > > I will vote for the first one, which is much simpler. And we can
limit
> > the
> > > data under /apisix/data_panel, to make it less dangerous.
> > >
> > > We can write:
> > > 1. id
> > > 2. version
> > > 3. start_time
> > > 4. update_time
> > > periodically.
> > >
> > > Chao Zhang <[email protected]> 于2020年11月20日周五 下午2:41写道:
> > >
> > > > Hi, there
> > > >
> > > > Currently some of our users often confuses their APISIX version,
their
> > > etcd
> > > > version and etcd,
> > > > which is adverse for solving issues and debugging.
> > > >
> > > > So I think a status API is required to tell users the basic
instance
> > > > information, just like “who am I”, which is useful when diagnosing
> > > > problems.
> > > >
> > > > The status page could be formatted as a JSON string so the output
can
> > be
> > > > piped with json parsers like jq, fx,
> > > > for now, basic fields should be put inside the status is:
> > > >
> > > > 1) APISIX version, version string of the APISIX instance itself,
e.g.
> > > > “2.0”;
> > > > 2) etcd version, etcd cluster version,
> > > > e.g. {"etcdserver":"3.5.0-pre","etcdcluster":"3.5.0”};
> > > > 3) id, id of the current APISIX instance;
> > > > 4) uptime, elapsed time (in seconds) since APISIX started;
> > > > 5) IP addresses, the IP addresses of current Pods/VM/Physical
machine;
> > > > 6) state, the current instance state, can be “online”, “shutting
down”,
> > > > “offline”, which can be used to cooperate with the layer 4 Load
> > balancer
> > > > (e.g. LVS + Keepalived), we can provide admin APIs to set the state
> > > > subsequently;
> > > >
> > > > {
> > > > "id": "ddea4053-4ffd-4f09-b176-b8c5e919916b",
> > > > "hostname": "localhost.local",
> > > > "version": "2.0",
> > > > "state": "online",
> > > > "etcd_version": {
> > > > "etcdserver": "3.5.0-pre",
> > > > "etcdcluster":"3.5.0”
> > > > },
> > > > "uptime": 3600,
> > > > "ip": ["10.0.2.15", "192.168.1.2"]
> > > > }
> > > >
> > > > Other fields can be appended in the future, the APISIX should add
an
> > API
> > > > (like /status) to output these data.
> > > >
> > > > So far what we discussed is limited in a single APISIX instance,
when
> > we
> > > > want to insight the whole APISIX cluster, we need to collect each
> > status
> > > > data of APISIX instance, show them in APISIX Dashboard.
> > > >
> > > > The most tricky problem here is how does an APISIX instance upload
its
> > > > status data, there are two options we may consider:
> > > >
> > > > 1. APISIX writes the status data into etcd periodically;
> > > > 2. Introduce another control plane component, let APISIX transmits
> > > > status data to it and the control plane component will write them
to
> > > > etcd.
> > > >
> > > > The APISX Dashboard backend should also expose an API to output
these
> > > > status data so the frontend can render and show these data.
> > > >
> > > > So in a nut shell, we have these stuffs to solve for implementing
this
> > > > feature:
> > > >
> > > > - APISIX internally uploads these data (either to etcd or another
> > > > control plane component, we need further discuss)
> > > > - Implement an admin API in APISIX.
> > > > - Implement an admin API in Dashboard backend.
> > > > - Implement the Dashboard frontend web page.
> > > >
> > > > Let’s discuss it and realize it together!
> > > >
> > > > References:
> > > >
> > > > - https://www.envoyproxy.io/docs/envoy/latest/operations/admin
> > > > - https://doc.traefik.io/traefik/operations/dashboard/
> > > > - https://docs.konghq.com/2.0.x/admin-api/#information-routes
> > > >
> > >
> >

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