# 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 ```