traefik/docs/content/middlewares/http/basicauth.md

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# BasicAuth
Adding Basic Authentication
{: .subtitle }
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![BasicAuth](../../assets/img/middleware/basicauth.png)
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The BasicAuth middleware restricts access to your services to known users.
## Configuration Examples
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```yaml tab="Docker"
# Declaring the user list
#
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# Note: when used in docker-compose.yml all dollar signs in the hash need to be doubled for escaping.
# To create user:password pair, it's possible to use this command:
# echo $(htpasswd -nB user) | sed -e s/\\$/\\$\\$/g
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#
# Also note that dollar signs should NOT be doubled when they not evaluated (e.g. Ansible docker_container module).
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labels:
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- "traefik.http.middlewares.test-auth.basicauth.users=test:$$apr1$$H6uskkkW$$IgXLP6ewTrSuBkTrqE8wj/,test2:$$apr1$$d9hr9HBB$$4HxwgUir3HP4EsggP/QNo0"
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```
```yaml tab="Kubernetes"
# Declaring the user list
apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
name: test-auth
spec:
basicAuth:
secret: secretName
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```
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```yaml tab="Consul Catalog"
- "traefik.http.middlewares.test-auth.basicauth.users=test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/,test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0"
```
```json tab="Marathon"
"labels": {
"traefik.http.middlewares.test-auth.basicauth.users": "test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/,test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0"
}
```
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```yaml tab="Rancher"
# Declaring the user list
labels:
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- "traefik.http.middlewares.test-auth.basicauth.users=test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/,test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0"
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```
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```yaml tab="File (YAML)"
# Declaring the user list
http:
middlewares:
test-auth:
basicAuth:
users:
- "test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/"
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- "test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0"
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```
```toml tab="File (TOML)"
# Declaring the user list
[http.middlewares]
[http.middlewares.test-auth.basicAuth]
users = [
"test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/",
"test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0",
]
```
## Configuration Options
### General
Passwords must be hashed using MD5, SHA1, or BCrypt.
!!! tip
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Use `htpasswd` to generate the passwords.
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### `users`
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The `users` option is an array of authorized users. Each user must be declared using the `name:hashed-password` format.
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!!! note ""
- If both `users` and `usersFile` are provided, the two are merged. The contents of `usersFile` have precedence over the values in `users`.
- For security reasons, the field `users` doesn't exist for Kubernetes IngressRoute, and one should use the `secret` field instead.
```yaml tab="Docker"
# Declaring the user list
#
# Note: when used in docker-compose.yml all dollar signs in the hash need to be doubled for escaping.
# To create a user:password pair, the following command can be used:
# echo $(htpasswd -nb user password) | sed -e s/\\$/\\$\\$/g
#
# Also note that dollar signs should NOT be doubled when they not evaluated (e.g. Ansible docker_container module).
labels:
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- "traefik.http.middlewares.test-auth.basicauth.users=test:$$apr1$$H6uskkkW$$IgXLP6ewTrSuBkTrqE8wj/,test2:$$apr1$$d9hr9HBB$$4HxwgUir3HP4EsggP/QNo0"
```
```yaml tab="Kubernetes"
# Declaring the user list
apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
name: test-auth
spec:
basicAuth:
secret: authsecret
---
# Note: in a kubernetes secret the string (e.g. generated by htpasswd) must be base64-encoded first.
# To create an encoded user:password pair, the following command can be used:
# htpasswd -nb user password | openssl base64
apiVersion: v1
kind: Secret
metadata:
name: authsecret
namespace: default
data:
users: |2
dGVzdDokYXByMSRINnVza2trVyRJZ1hMUDZld1RyU3VCa1RycUU4d2ovCnRlc3QyOiRhcHIxJGQ5
aHI5SEJCJDRIeHdnVWlyM0hQNEVzZ2dQL1FObzAK
```
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```yaml tab="Consul Catalog"
# Declaring the user list
- "traefik.http.middlewares.test-auth.basicauth.users=test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/,test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0"
```
```json tab="Marathon"
"labels": {
"traefik.http.middlewares.test-auth.basicauth.users": "test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/,test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0"
}
```
```yaml tab="Rancher"
# Declaring the user list
labels:
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- "traefik.http.middlewares.test-auth.basicauth.users=test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/,test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0"
```
```yaml tab="File (YAML)"
# Declaring the user list
http:
middlewares:
test-auth:
basicAuth:
users:
- "test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/"
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- "test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0"
```
```toml tab="File (TOML)"
# Declaring the user list
[http.middlewares]
[http.middlewares.test-auth.basicAuth]
users = [
"test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/",
"test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0",
]
```
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### `usersFile`
The `usersFile` option is the path to an external file that contains the authorized users for the middleware.
The file content is a list of `name:hashed-password`.
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!!! note ""
- If both `users` and `usersFile` are provided, the two are merged. The contents of `usersFile` have precedence over the values in `users`.
- Because it does not make much sense to refer to a file path on Kubernetes, the `usersFile` field doesn't exist for Kubernetes IngressRoute, and one should use the `secret` field instead.
```yaml tab="Docker"
labels:
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- "traefik.http.middlewares.test-auth.basicauth.usersfile=/path/to/my/usersfile"
```
```yaml tab="Kubernetes"
apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
name: test-auth
spec:
basicAuth:
secret: authsecret
---
apiVersion: v1
kind: Secret
metadata:
name: authsecret
namespace: default
data:
users: |2
dGVzdDokYXByMSRINnVza2trVyRJZ1hMUDZld1RyU3VCa1RycUU4d2ovCnRlc3QyOiRhcHIxJGQ5
aHI5SEJCJDRIeHdnVWlyM0hQNEVzZ2dQL1FObzAK
```
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```yaml tab="Consul Catalog"
- "traefik.http.middlewares.test-auth.basicauth.usersfile=/path/to/my/usersfile"
```
```json tab="Marathon"
"labels": {
"traefik.http.middlewares.test-auth.basicauth.usersfile": "/path/to/my/usersfile"
}
```
```yaml tab="Rancher"
labels:
- "traefik.http.middlewares.test-auth.basicauth.usersfile=/path/to/my/usersfile"
```
```yaml tab="File (YAML)"
http:
middlewares:
test-auth:
basicAuth:
usersFile: "/path/to/my/usersfile"
```
```toml tab="File (TOML)"
[http.middlewares]
[http.middlewares.test-auth.basicAuth]
usersFile = "/path/to/my/usersfile"
```
??? example "A file containing test/test and test2/test2"
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```txt
test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/
test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0
```
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### `realm`
You can customize the realm for the authentication with the `realm` option. The default value is `traefik`.
```yaml tab="Docker"
labels:
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- "traefik.http.middlewares.test-auth.basicauth.realm=MyRealm"
```
```yaml tab="Kubernetes"
apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
name: test-auth
spec:
basicAuth:
realm: MyRealm
```
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```json tab="Consul Catalog"
- "traefik.http.middlewares.test-auth.basicauth.realm=MyRealm"
```
```json tab="Marathon"
"labels": {
"traefik.http.middlewares.test-auth.basicauth.realm": "MyRealm"
}
```
```yaml tab="Rancher"
labels:
- "traefik.http.middlewares.test-auth.basicauth.realm=MyRealm"
```
```yaml tab="File (YAML)"
http:
middlewares:
test-auth:
basicAuth:
realm: "MyRealm"
```
```toml tab="File (TOML)"
[http.middlewares]
[http.middlewares.test-auth.basicAuth]
realm = "MyRealm"
```
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### `headerField`
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You can define a header field to store the authenticated user using the `headerField`option.
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```yaml tab="Docker"
labels:
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- "traefik.http.middlewares.my-auth.basicauth.headerField=X-WebAuth-User"
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```
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```yaml tab="Kubernetes"
apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
name: my-auth
spec:
basicAuth:
# ...
headerField: X-WebAuth-User
```
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```json tab="Consul Catalog"
- "traefik.http.middlewares.my-auth.basicauth.headerField=X-WebAuth-User"
```
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```json tab="Marathon"
"labels": {
"traefik.http.middlewares.my-auth.basicauth.headerField": "X-WebAuth-User"
}
```
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```yaml tab="File (YAML)"
http:
middlewares:
my-auth:
basicAuth:
# ...
headerField: "X-WebAuth-User"
```
```toml tab="File (TOML)"
[http.middlewares.my-auth.basicAuth]
# ...
headerField = "X-WebAuth-User"
```
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### `removeHeader`
Set the `removeHeader` option to `true` to remove the authorization header before forwarding the request to your service. (Default value is `false`.)
```yaml tab="Docker"
labels:
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- "traefik.http.middlewares.test-auth.basicauth.removeheader=true"
```
```yaml tab="Kubernetes"
apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
name: test-auth
spec:
basicAuth:
removeHeader: true
```
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```json tab="Consul Catalog"
- "traefik.http.middlewares.test-auth.basicauth.removeheader=true"
```
```json tab="Marathon"
"labels": {
"traefik.http.middlewares.test-auth.basicauth.removeheader": "true"
}
```
```yaml tab="Rancher"
labels:
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- "traefik.http.middlewares.test-auth.basicauth.removeheader=true"
```
```yaml tab="File (YAML)"
http:
middlewares:
test-auth:
basicAuth:
removeHeader: true
```
```toml tab="File (TOML)"
[http.middlewares]
[http.middlewares.test-auth.basicAuth]
removeHeader = true
```