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Seed application template for erlang application with monitoring, prometheus and grafana

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erlang-seed

Seed application template for erlang application with monitoring, prometheus and grafana.

usage

$ make help
# -----------------------------------------------------------------------------
# Targets:
#
#	clean 					: rm -rf ./out
#	help 					: show this message
#	gen PROJECTNAME=proj APPNAME=foo	: generate project in ./out/PROJECTNAME
#
# end.
# -----------------------------------------------------------------------------

quick start

$ make clean
$ make gen PROJECTNAME=energy APPNAME=harbour

scaffolding

This generates scaffolding like this:

out
├── energy
│   ├── Dockerfile
│   ├── harbour
│   ├── Makefile
│   ├── monitor
│   └── README.md
└── temp
└── monitor

containers

And spins up the containers:

$ docker ps
CONTAINER ID        IMAGE                        COMMAND                  CREATED             STATUS              PORTS                    NAMES
6d3065e5088c        localtag/harbour             "/bin/bash -l -c './…"   28 minutes ago      Up 28 minutes       0.0.0.0:4444->4444/tcp   monitor_harbour_1
1a5f1e7b1c07        prom/prometheus:v2.10.0      "/bin/prometheus --c…"   30 minutes ago      Up 30 minutes       0.0.0.0:9090->9090/tcp   monitor_prometheus_1
3557eeecb09b        grafana/grafana:6.2.4        "/run.sh"                30 minutes ago      Up 30 minutes       0.0.0.0:3000->3000/tcp   monitor_grafana_1
f5b4a63b5d78        prom/node-exporter:v0.18.1   "/bin/node_exporter …"   30 minutes ago      Up 30 minutes       0.0.0.0:9100->9100/tcp   monitor_node-exporter_1

metrics

Take a look at the app metrics being served by mprom:

$ curl http://localhost:4444/metrics

Then take a look at the prometheus server that is aggregating those metrics. It's easier to see this in a browser at:

http://localhost:9090/targets

Finally, take a look at the grafana charts at:

http://localhost:3000

Remember the grafana login is 'admin/admin'.

cluster

To shutdown the cluster:

$ cd proj/foo
$ make cstop

To restart the cluster:

$ cd proj/foo
$ make cstart

To tail the cluster logs:

$ cd proj/foo
$ make tail

resources

monitoring

erlang/rebar3

mustache templates

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