traefik/docs/content/providers/zookeeper.md
Kevin Pollet b39d226fb8
fix: use host's root CA set if ClientTLS ca is not defined
Co-authored-by: Tom Moulard <tom.moulard@traefik.io>
2021-11-03 17:38:07 +01:00

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# Traefik & ZooKeeper
A Story of KV Store & Containers
{: .subtitle }
Store your configuration in ZooKeeper and let Traefik do the rest!
## Routing Configuration
See the dedicated section in [routing](../routing/providers/kv.md).
## Provider Configuration
### `endpoints`
_Required, Default="127.0.0.1:2181"_
Defines how to access to ZooKeeper.
```yaml tab="File (YAML)"
providers:
zooKeeper:
endpoints:
- "127.0.0.1:2181"
```
```toml tab="File (TOML)"
[providers.zooKeeper]
endpoints = ["127.0.0.1:2181"]
```
```bash tab="CLI"
--providers.zookeeper.endpoints=127.0.0.1:2181
```
### `rootKey`
_Required, Default="traefik"_
Defines the root key of the configuration.
```yaml tab="File (YAML)"
providers:
zooKeeper:
rootKey: "traefik"
```
```toml tab="File (TOML)"
[providers.zooKeeper]
rootKey = "traefik"
```
```bash tab="CLI"
--providers.zookeeper.rootkey=traefik
```
### `username`
_Optional, Default=""_
Defines a username to connect with ZooKeeper.
```yaml tab="File (YAML)"
providers:
zooKeeper:
# ...
username: "foo"
```
```toml tab="File (TOML)"
[providers.zooKeeper]
# ...
username = "foo"
```
```bash tab="CLI"
--providers.zookeeper.username=foo
```
### `password`
_Optional, Default=""_
Defines a password to connect with ZooKeeper.
```yaml tab="File (YAML)"
providers:
zooKeeper:
# ...
password: "bar"
```
```toml tab="File (TOML)"
[providers.zooKeeper]
# ...
password = "bar"
```
```bash tab="CLI"
--providers.zookeeper.password=foo
```
### `tls`
_Optional_
#### `tls.ca`
Certificate Authority used for the secure connection to ZooKeeper,
defaults to the system bundle.
```yaml tab="File (YAML)"
providers:
zooKeeper:
tls:
ca: path/to/ca.crt
```
```toml tab="File (TOML)"
[providers.zooKeeper.tls]
ca = "path/to/ca.crt"
```
```bash tab="CLI"
--providers.zookeeper.tls.ca=path/to/ca.crt
```
#### `tls.caOptional`
The value of `tls.caOptional` defines which policy should be used for the secure connection with TLS Client Authentication to Zookeeper.
!!! warning ""
If `tls.ca` is undefined, this option will be ignored, and no client certificate will be requested during the handshake. Any provided certificate will thus never be verified.
When this option is set to `true`, a client certificate is requested during the handshake but is not required. If a certificate is sent, it is required to be valid.
When this option is set to `false`, a client certificate is requested during the handshake, and at least one valid certificate should be sent by the client.
```yaml tab="File (YAML)"
providers:
zooKeeper:
tls:
caOptional: true
```
```toml tab="File (TOML)"
[providers.zooKeeper.tls]
caOptional = true
```
```bash tab="CLI"
--providers.zookeeper.tls.caOptional=true
```
#### `tls.cert`
Public certificate used for the secure connection to ZooKeeper.
```yaml tab="File (YAML)"
providers:
zooKeeper:
tls:
cert: path/to/foo.cert
key: path/to/foo.key
```
```toml tab="File (TOML)"
[providers.zooKeeper.tls]
cert = "path/to/foo.cert"
key = "path/to/foo.key"
```
```bash tab="CLI"
--providers.zookeeper.tls.cert=path/to/foo.cert
--providers.zookeeper.tls.key=path/to/foo.key
```
#### `tls.key`
Private certificate used for the secure connection to ZooKeeper.
```yaml tab="File (YAML)"
providers:
zooKeeper:
tls:
cert: path/to/foo.cert
key: path/to/foo.key
```
```toml tab="File (TOML)"
[providers.zooKeeper.tls]
cert = "path/to/foo.cert"
key = "path/to/foo.key"
```
```bash tab="CLI"
--providers.zookeeper.tls.cert=path/to/foo.cert
--providers.zookeeper.tls.key=path/to/foo.key
```
#### `tls.insecureSkipVerify`
If `insecureSkipVerify` is `true`, the TLS connection to Zookeeper accepts any certificate presented by the server regardless of the hostnames it covers.
```yaml tab="File (YAML)"
providers:
zooKeeper:
tls:
insecureSkipVerify: true
```
```toml tab="File (TOML)"
[providers.zooKeeper.tls]
insecureSkipVerify = true
```
```bash tab="CLI"
--providers.zookeeper.tls.insecureSkipVerify=true
```