Prometheus Exporter

Prometheus Exporter

Tips

端口

服务默认端口说明监控面板
blackbox_exporter9115检测 HTTP, HTTPS, DNS, TCP, ICMP.
container-exporter9104Docker Dashboard
jmx_exporter
mysqld-exporter9104
mysqld_exporter
nginx-lua-prometheusn/aNginx Overview
node_exporter9100节点状态信息Node Exporter Server Metrics
Node exporter single server
postgres_exporter9178
redis-exporter9121Prometheus Redis
redis_exporter
snmp_exporter9116http://localhost:9116/snmp?target=1.2.3.4
grafana3000
prometheus9090
brew install node_exporter
# 从源码编译
go get -u -v github.com/prometheus/node_exporter
cd ~/gp/src/github.com/prometheus/node_exporter
make
./node_exporter

redis_exporter

go get github.com/oliver006/redis_exporter
redis_exporter
# Prometheus Redis https://grafana.net/dashboards/763

mysqld_exporter

go get github.com/prometheus/mysqld_exporter
export DATA_SOURCE_NAME='login:[email protected](hostname:port)/'
mysqld_exporter

blackbox-exporter

  • prometheus/blackbox_exporter
  • http://localhost:9115/probe?target=google.com&module=http_2xx , debug=true 会包含额外信息
    • probe_success
  • SIGHUP, POST /-/reload
  • ICMP 需要更高的权限
  • IP Hash 转换 (3057428492).toString(2).match(/.{8}/g).map(v=>parseInt(v,2)).join('.')

blackbox.yml

# 模块配置 - probe 时进行引用
modules:
http_2xx:
# 底层 probe 类型
# http, tcp, dns, icmp
prober: http
http_post_2xx:
prober: http
http:
method: POST
# IPv4
http_2xx_ipv4:
prober: http
timeout: 5s
http:
preferred_ip_protocol: "ip4"
tcp_connect:
prober: tcp
pop3s_banner:
prober: tcp
tcp:
query_response:
- expect: '^+OK'
tls: true
tls_config:
insecure_skip_verify: false
ssh_banner:
prober: tcp
tcp:
query_response:
- expect: '^SSH-2.0-'
irc_banner:
prober: tcp
tcp:
query_response:
- send: 'NICK prober'
- send: 'USER prober prober prober :prober'
- expect: 'PING :([^ ]+)'
send: 'PONG ${1}'
- expect: '^:[^ ]+ 001'
icmp:
prober: icmp

prometheus.yml

scrape_configs:
- job_name: 'blackbox'
metrics_path: /probe
params:
module: [http_2xx] # Look for a HTTP 200 response.
static_configs:
- targets:
- http://prometheus.io # Target to probe with http.
- https://prometheus.io # Target to probe with https.
- http://example.com:8080 # Target to probe with http on port 8080.
relabel_configs:
- source_labels: [__address__]
target_label: __param_target
- source_labels: [__param_target]
target_label: instance
- target_label: __address__
replacement: 127.0.0.1:9115 # The blackbox exporter's real hostname:port.

postgresql-exporter

snmp-exporter

  • 默认端口 9116
  • 默认 generator.yaml
  • 默认 snmp.yml
    • apcups
    • arista_sw
    • cisco_wlc
    • ddwrt
    • if_mib
    • infrapower_pdu
    • keepalived
    • nec_ix
    • paloalto_fw
    • printer_mib
    • paritan
    • servertech_sentry3
    • synology
    • ubiquiti_airfiber
    • ubiquiti_airmax
    • ubiquiti_unifi
  • /usr/share/snmp/mibs
# 安装
apk add -X https://mirrors.aliyun.com/alpine/edge/testing/ prometheus-snmp-exporter
# /usr/share/snmp/mibs/
apk add net-snmp
# prepare mibs
mkdir -p $HOME/.snmp/mibs
curl -O https://raw.githubusercontent.com/prometheus/snmp_exporter/master/generator/Makefile
make mibs MIBDIR=$HOME/.snmp/mibs
curl -LOC- https://raw.githubusercontent.com/prometheus/snmp_exporter/master/generator/generator.yml
# docker 启动
docker run --rm -it -p 9116:9116 prom/snmp-exporter
modules:
module_name:
walk:
- 1.3.6.1.2.1.2
- sysUpTime
- 1.3.6.1.2.1.31.1.1.1.6.40
modules:
module_name: # The module name. You can have as many modules as you want.
walk: # List of OIDs to walk. Can also be SNMP object names or specific instances.
- 1.3.6.1.2.1.2 # Same as "interfaces"
- sysUpTime # Same as "1.3.6.1.2.1.1.3"
- 1.3.6.1.2.1.31.1.1.1.6.40 # Instance of "ifHCInOctets" with index "40"
version: 2 # SNMP version to use. Defaults to 2.
# 1 will use GETNEXT, 2 and 3 use GETBULK.
max_repetitions: 25 # How many objects to request with GET/GETBULK, defaults to 25.
# May need to be reduced for buggy devices.
retries: 3 # How many times to retry a failed request, defaults to 3.
timeout: 5s # Timeout for each individual SNMP request, defaults to 5s.
auth:
# Community string is used with SNMP v1 and v2. Defaults to "public".
community: public
# v3 has different and more complex settings.
# Which are required depends on the security_level.
# The equivalent options on NetSNMP commands like snmpbulkwalk
# and snmpget are also listed. See snmpcmd(1).
username: user # Required, no default. -u option to NetSNMP.
security_level: noAuthNoPriv # Defaults to noAuthNoPriv. -l option to NetSNMP.
# Can be noAuthNoPriv, authNoPriv or authPriv.
password: pass # Has no default. Also known as authKey, -A option to NetSNMP.
# Required if security_level is authNoPriv or authPriv.
auth_protocol: MD5 # MD5 or SHA, defaults to MD5. -a option to NetSNMP.
# Used if security_level is authNoPriv or authPriv.
priv_protocol: DES # DES or AES, defaults to DES. -x option to NetSNMP.
# Used if security_level is authPriv.
priv_password: otherPass # Has no default. Also known as privKey, -X option to NetSNMP.
# Required if security_level is authPriv.
context_name: context # Has no default. -n option to NetSNMP.
# Required if context is configured on the device.
lookups: # Optional list of lookups to perform.
# The default for `keep_source_indexes` is false. Indexes must be unique for this option to be used.
# If the index of a table is bsnDot11EssIndex, usually that'd be the label
# on the resulting metrics from that table. Instead, use the index to
# lookup the bsnDot11EssSsid table entry and create a bsnDot11EssSsid label
# with that value.
- source_indexes: [bsnDot11EssIndex]
lookup: bsnDot11EssSsid
drop_source_indexes: false # If true, delete source index labels for this lookup.
# This avoids label clutter when the new index is unique.
overrides: # Allows for per-module overrides of bits of MIBs
metricName:
ignore: true # Drops the metric from the output.
regex_extracts:
Temp: # A new metric will be created appending this to the metricName to become metricNameTemp.
- regex: '(.*)' # Regex to extract a value from the returned SNMP walks's value.
value: '$1' # The result will be parsed as a float64, defaults to $1.
Status:
- regex: '.*Example'
value: '1' # The first entry whose regex matches and whose value parses wins.
- regex: '.*'
value: '0'
type: DisplayString # Override the metric type, possible types are:
# gauge: An integer with type gauge.
# counter: An integer with type counter.
# OctetString: A bit string, rendered as 0xff34.
# DateAndTime: An RFC 2579 DateAndTime byte sequence. If the device has no time zone data, UTC is used.
# DisplayString: An ASCII or UTF-8 string.
# PhysAddress48: A 48 bit MAC address, rendered as 00:01:02:03:04:ff.
# Float: A 32 bit floating-point value with type gauge.
# Double: A 64 bit floating-point value with type gauge.
# InetAddressIPv4: An IPv4 address, rendered as 1.2.3.4.
# InetAddressIPv6: An IPv6 address, rendered as 0102:0304:0506:0708:090A:0B0C:0D0E:0F10.
# InetAddress: An InetAddress per RFC 4001. Must be preceded by an InetAddressType.
# InetAddressMissingSize: An InetAddress that violates section 4.1 of RFC 4001 by
# not having the size in the index. Must be preceded by an InetAddressType.
# EnumAsInfo: An enum for which a single timeseries is created. Good for constant values.
# EnumAsStateSet: An enum with a time series per state. Good for variable low-cardinality enums.
# Bits: An RFC 2578 BITS construct, which produces a StateSet with a time series per bit.

cadvisor

# 版本 https://github.com/google/cadvisor/releases
# google/cadvisor 没有新版本 tag
docker run \
--volume=/:/rootfs:ro \
--volume=/var/run:/var/run:ro \
--volume=/sys:/sys:ro \
--volume=/var/lib/docker/:/var/lib/docker:ro \
--volume=/dev/disk/:/dev/disk:ro \
--publish=8080:8080 \
--detach=true \
--name=cadvisor \
--privileged \
--device=/dev/kmsg \
gcr.io/cadvisor/cadvisor:v0.36.0