# Setup Kong/Prometheus/Grafana Statsd

## Run vagrant up

## Configure Kong

```
sudo cp /etc/kong/kong.conf.default /etc/kong/kong.conf
```

add the following:

```
admin_listen = 0.0.0.0:8001
database = postgres
pg_host = 127.0.0.1
pg_port = 5432
pg_user = kong
pg_password = kong
pg_database = kong
```

Run Kong migrations and Kong

```
sudo kong migrations up
sudo kong start
```

Then on local box run
```
./setup_api.sh
```

## Configure Statsd Exporter

```
cat <<EOF > /tmp/statsd_exporter-0.6.0.linux-amd64/statsd.rules
mappings:
#proxied requests
- match: kong.*.*.kong_latency
  name: "kong_latency"
  labels:
    job: "kong"
    api: "$2"
    environment: "$1"
- match: kong.*.*.upstream_latency
  name: "upstream_latency"
  labels:
    job: "kong"
    api: "$2"
    environment: "$1"
- match: kong.*.*.latency
  name: "upstream_latency"
  labels:
    job: "kong"
    api: "$2"
    environment: "$1"
- match: kong.*.*.request.status.*
  name: "status"
  labels:
    job: "kong"
    api: "$2"
    http: "$3"
    environment: "$1"
- match: kong.*.*.*.size
  name: "size"
  labels:
    job: "kong"
    api: "$2"
    phase: "$3"
    environment: "$1"
EOF
```

Run the exporter
```
/tmp/statsd_exporter-0.6.0.linux-amd64$ ./statsd_exporter -statsd.mapping-config statsd.rules
```

## Configure prometheus
Add the following lines to the end of /etc/prometheus/prometheus.yml and sudo systemctl restart prometheus

```
  - job_name: 'statsd'
    target_groups:
      - targets: ['localhost:9102']
```

Restart Prometheus
```
sudo /etc/init.d/prometheus restart
```

## Configure Grafana

- Login to localhost:3000 admin/admin
- Setup the prometheus data source ( Type: prometheus / URL http://localhost:9090/ / Access proxy )
- import the example dashboard (dashboard.json)