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128 lines
6.2 KiB
128 lines
6.2 KiB
# Keycloak Quickstart Guide [](https://slack.min.io)
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Keycloak is an open source Identity and Access Management solution aimed at modern applications and services, this document covers configuring Keycloak identity provider support with MinIO.
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## Prerequisites
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Configure and install keycloak server by following [Keycloak Installation Guide](https://www.keycloak.org/docs/latest/getting_started/index.html) (finish upto section 3.4)
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### Configure Keycloak UI
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- Go to Clients
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- Click on account
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- Settings
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- Enable `Implicit Flow`
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- Save
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- Go to Users
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- Click on the user
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- Attribute, add a new attribute `Key` is `policy`, `Value` is name of the `policy` on MinIO (ex: `readwrite`)
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- Add and Save
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- Go to Clients
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- Click on `account`
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- Settings, set `Valid Redirect URIs` to `*`, expand `Advanced Settings` and set `Access Token Lifespan` to `1 Hours`
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- Save
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- Go to Clients
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- Client on `account`
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- Mappers
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- Create
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- `Name` with any text
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- `Mapper Type` is `User Attribute`
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- `User Attribute` is `policy`
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- `Token Claim Name` is `policy`
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- `Claim JSON Type` is `string`
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- Save
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- Open http://localhost:8080/auth/realms/demo/.well-known/openid-configuration to verify OpenID discovery document, verify it has `authorization_endpoint` and `jwks_uri`
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### Configure MinIO
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```
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$ export MINIO_ACCESS_KEY=minio
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$ export MINIO_SECRET_KEY=minio123
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$ minio server /mnt/export
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```
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Here are all the available options to configure OpenID connect
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```
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mc admin config set myminio/ identity_openid
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KEY:
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identity_openid enable OpenID SSO support
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ARGS:
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config_url* (url) openid discovery document e.g. "https://accounts.google.com/.well-known/openid-configuration"
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client_id (string) unique public identifier for apps e.g. "292085223830.apps.googleusercontent.com"
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claim_name (string) JWT canned policy claim name, defaults to "policy"
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claim_prefix (string) JWT claim namespace prefix e.g. "customer1/"
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scopes (csv) Comma separated list of OpenID scopes for server, defaults to advertised scopes from discovery document e.g. "email,admin"
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comment (sentence) optionally add a comment to this setting
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```
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and ENV based options
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```
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mc admin config set myminio/ identity_openid --env
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KEY:
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identity_openid enable OpenID SSO support
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ARGS:
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MINIO_IDENTITY_OPENID_CONFIG_URL* (url) openid discovery document e.g. "https://accounts.google.com/.well-known/openid-configuration"
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MINIO_IDENTITY_OPENID_CLIENT_ID (string) unique public identifier for apps e.g. "292085223830.apps.googleusercontent.com"
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MINIO_IDENTITY_OPENID_CLAIM_NAME (string) JWT canned policy claim name, defaults to "policy"
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MINIO_IDENTITY_OPENID_CLAIM_PREFIX (string) JWT claim namespace prefix e.g. "customer1/"
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MINIO_IDENTITY_OPENID_SCOPES (csv) Comma separated list of OpenID scopes for server, defaults to advertised scopes from discovery document e.g. "email,admin"
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MINIO_IDENTITY_OPENID_COMMENT (sentence) optionally add a comment to this setting
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```
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Set `identity_openid` config with `config_url`, `client_id` and restart MinIO
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```
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~ mc admin config set myminio identity_openid config_url="http://localhost:8080/auth/realms/demo/.well-known/openid-configuration" client_id="account"
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```
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> NOTE: You can configure the `scopes` parameter to restrict the OpenID scopes requested by minio to the IdP, for example, `"openid,policy_role_attribute"`, being `policy_role_attribute` a client_scope / client_mapper that maps a role attribute called policy to a `policy` claim returned by Keycloak
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Once successfully set restart the MinIO instance.
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```
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mc admin service restart myminio
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```
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### Using WebIdentiy API
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Client ID can be found by clicking any of the clients listed [here](http://localhost:8080/auth/admin/master/console/#/realms/demo/clients). If you have followed the above steps docs, the default Client ID will be `account`.
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```
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$ go run docs/sts/web-identity.go -cid account -csec 072e7f00-4289-469c-9ab2-bbe843c7f5a8 -config-ep "http://localhost:8080/auth/realms/demo/.well-known/openid-configuration" -port 8888
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2018/12/26 17:49:36 listening on http://localhost:8888/
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```
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This will open the login page of keycloak, upon successful login, STS credentials along with any buckets discovered using the credentials will be printed on the screen, for example:
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```
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{
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"buckets": [
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"bucket-x"
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],
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"credentials": {
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"AccessKeyID": "6N2BALX7ELO827DXS3GK",
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"SecretAccessKey": "23JKqAD+um8ObHqzfIh+bfqwG9V8qs9tFY6MqeFR+xxx",
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"SessionToken": "eyJhbGciOiJIUzUxMiIsInR5cCI6IkpXVCJ9.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._UG_-ZHgwdRnsp0gFdwChb7VlbPs-Gr_RNUz9EV7TggCD59qjCFAKjNrVHfOSVkKvYEMe0PvwfRKjnJl3A_mBA"",
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"SignerType": 1
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}
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}
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```
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> NOTE: You can use the `-cscopes` parameter to restrict the requested scopes, for example to `"openid,policy_role_attribute"`, being `policy_role_attribute` a client_scope / client_mapper that maps a role attribute called policy to a `policy` claim returned by Keycloak.
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These credentials can now be used to perform MinIO API operations.
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### Using MinIO Browser
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- Open MinIO URL on the browser, lets say http://localhost:9000
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- Click on `Log in with OpenID`
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- Provide `Client ID` and press ENTER, if `client_id` is already configured for MinIO this page will automatically redirect to Keycloak user login page.
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- User will be redirected to the Keycloak user login page, upon successful login the user will be redirected to MinIO page and logged in automatically,
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the user should see now the buckets and objects they have access to.
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## Explore Further
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- [MinIO STS Quickstart Guide](https://docs.min.io/docs/minio-sts-quickstart-guide)
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- [The MinIO documentation website](https://docs.min.io)
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