Kea DHCP : コントロールエージェント2025/03/13 |
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Kea コントロールエージェントを起動すると、API 経由で Kea DHCP を操作することができます。 |
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| [1] | Kea コントロールエージェントをインストールして起動します。 |
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root@dlp:~#
apt -y install kea-ctrl-agent # [configured_password] を選択 +---------+ Configuring kea-ctrl-agent +----------+ | Kea control agent authentication configuration | | | | do_nothing | | configured_random_password | | configured_password | | | | | | <Ok> | | | +-------------------------------------------------+ # kea-ctrl-agent の管理パスワードを設定 +--------------------+ Configuring kea-ctrl-agent +--------------------+ | This password will be stored in the /etc/kea/kea-api-password file. | | | | NOTE: if the password is empty, no action will be taken. | | | | New password for the kea control agent "kea_api" user: | | | | ********____________________________________________________________ | | | | <Ok> | | | +----------------------------------------------------------------------+
root@dlp:~#
vi /etc/kea/kea-dhcp4.conf
"Dhcp4": {
# 以下 追記
"control-socket": {
"socket-type": "unix",
"socket-name": "/run/kea/kea4-ctrl-socket"
},
.....
.....
root@dlp:~#
vi /etc/kea/kea-ctrl-agent.conf
# 20行目 : リスンするアドレス
"http-host": "127.0.0.1",
# 27行目 : リスンするポート
"http-port": 8000,
root@dlp:~# systemctl restart kea-dhcp4-server kea-ctrl-agent |
| [2] | API 経由でのコマンド投入例です。 |
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root@dlp:~# curl -u kea-api -s -H "Content-Type: application/json" -d '{"command": "list-commands", "service": ["dhcp4"]}' localhost:8000 | jq
Enter host password for user 'kea-api': # インストール中に設定した管理パスワードで応答
[
{
"arguments": [
"build-report",
"config-backend-pull",
"config-get",
"config-hash-get",
"config-reload",
"config-set",
"config-test",
"config-write",
"dhcp-disable",
"dhcp-enable",
"leases-reclaim",
"list-commands",
"server-tag-get",
"shutdown",
"statistic-get",
"statistic-get-all",
"statistic-remove",
"statistic-remove-all",
"statistic-reset",
"statistic-reset-all",
"statistic-sample-age-set",
"statistic-sample-age-set-all",
"statistic-sample-count-set",
"statistic-sample-count-set-all",
"status-get",
"version-get"
],
"result": 0
}
]
root@dlp:~# curl -u kea-api -s -H "Content-Type: application/json" -d '{"command": "config-get", "service": ["dhcp4"]}' localhost:8000 | jq
Enter host password for user 'kea-api':
[
{
"arguments": {
"Dhcp4": {
"allocator": "iterative",
"authoritative": false,
"boot-file-name": "",
"calculate-tee-times": false,
"control-socket": {
"socket-name": "/tmp/kea4-ctrl-socket",
"socket-type": "unix"
},
.....
.....
root@dlp:~# curl -u kea-api -s -H "Content-Type: application/json" -d '{"command": "statistic-get-all", "service": ["dhcp4"]}' localhost:8000 | jq
Enter host password for user 'kea-api':
[
{
"arguments": {
"cumulative-assigned-addresses": [
[
11,
"2025-03-12 12:43:34.156426"
],
[
10,
"2025-03-12 12:41:33.912558"
],
[
9,
"2025-03-12 12:37:35.943072"
],
.....
.....
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