The FROST-Server (FRaunhofer Opensource SensorThings-Server) is the first complete, open-source implementation of the OGC SensorThings API Part 1 (Sensing).
Declare the Helm repo or update it
$ helm repo add fraunhoferiosb https://fraunhoferiosb.github.io/helm-charts/
$ helm repo update fraunhoferiosb
Install the FROST-Server chart
$ helm install fraunhoferiosb/frost-server
This chart bootstraps a FROST-Server deployment on a Kubernetes cluster using the Helm package manager.
- Have a Kubernetes 1.4+ cluster. If you do not already have a cluster, you can:
- Create one by using Minikube
- Or use Katacoda
- Or use Play with Kubernetes
- Have the
kubectlcommand-line tool correctly configured to communicate with your Kubernetes cluster - Have the
helmcommand-line tool correctly initialized with your Kubernetes cluster - Have a Ingress controller installed on your Kubernetes cluster. Need to have Beta APIs enabled. (It is possible to disable ingress for FROST-Server and using Nodeport, by setting
frost.http.ingress.enabledtofalse)
Before to go, declare the Helm repo or update it
$ helm repo add fraunhoferiosb https://fraunhoferiosb.github.io/helm-charts/
$ helm repo update fraunhoferiosb
Then, to install the chart with the release name my-release
$ helm install my-release fraunhoferiosb/frost-server
This command deploys FROST-Server on the Kubernetes cluster in the default configuration. The configuration section lists the parameters that can be configured during installation.
By default, the FROST-Server instance is reachable at the http://frost-server:30080 URL (concatenation of the frost.http.serviceHost and frost.http.ports.http.servicePort configuration values).
Warning: Make sure to be able to resolve the
frost-serverDNS name by adding a rule either in your DNS server or in your local DNS resolver (e.g./etc/hostsin Unix-based environments), or use an IP instead of a DNS name by setting thefrost.http.serviceHostvalue.
This chart deploys a fully operational FROST-Server stack composed of:
- A (or several, depending on the number of replicas) FROST-Server's HTTP service(s)
- A (or several, depending on the number of replicas) FROST-Server's MQTT service(s)
- associated to an internal MQTT broker (Eclipse Mosquitto)
- (Not enabled by default) An internal FROST-Server's database
- associated to a local volume (disabled by default but can be enabled as explained here)
To have a view about the deployed FROST-Server resources in the my-release deployment execute:
$ helm status my-release
To visualize logs about deployed Helm release's pods, execute:
$ kubectl logs -l release=my-release
Or, more precisely:
$ kubectl get pods -l release=my-release
$ kubectl logs <pod name>
Where <pod name> is your desired pod name
Or, even simpler, by using kubetail:
$ kubetail -l release=my-release
To uninstall/delete the my-release release:
$ helm delete my-release
This command removes all the Kubernetes components associated with the chart and deletes the release.
The following table lists the configurable parameters of the FROST-Server chart and their default values.
| Parameter | Description | Default |
|---|---|---|
name |
Override of the base name for any FROST-Server Kubernetes component. | nil (use the chart name, frost-server, by default) |
frost.alwaysOrderbyId |
Always add an ‘orderby=id asc’ to queries to ensure consistent paging. | true |
frost.logSensitiveData |
If false, sensitive data like passwords and database connection URLs are not logged when loading settings. | false |
frost.queueLoggingInterval |
If non-zero, log queue statistics ever x milliseconds. Default: 0 (off) | 0 |
frost.plugins.plugins |
A comma-separated list of class names, listing additional plugins to load. | `` |
frost.plugins.coreModel.enable |
Toggle indicating the CoreModel plugin should be enabled. | true |
frost.plugins.coreModel.editableDsProperties |
Toggle indicating the server-generated properties of (Multi)Datastreams can be edited. | false |
frost.plugins.coreModel.idType.default |
The default type of the primary key columns, can be overruled on a per-table basis: LONG, STRING, UUID. | LONG |
frost.plugins.coreModel.idType.datastream |
The type of the primary key column of the Datastream table. Defaults to the value of frost.plugins.coreModel.idType.default. | `` |
frost.plugins.coreModel.idType.feature |
The type of the primary key column of the Feature table. Defaults to the value of frost.plugins.coreModel.idType.default. | `` |
frost.plugins.coreModel.idType.historicalLocation |
The type of the primary key column of the HistoricalLocation table. Defaults to the value of frost.plugins.coreModel.idType.default. | `` |
frost.plugins.coreModel.idType.location |
The type of the primary key column of the Location table. Defaults to the value of frost.plugins.coreModel.idType.default. | `` |
frost.plugins.coreModel.idType.observedProperty |
The type of the primary key column of the ObservedProperty table. Defaults to the value of frost.plugins.coreModel.idType.default. | `` |
frost.plugins.coreModel.idType.observation |
The type of the primary key column of the Observation table. Defaults to the value of frost.plugins.coreModel.idType.default. | `` |
frost.plugins.coreModel.idType.sensor |
The type of the primary key column of the Sensor table. Defaults to the value of frost.plugins.coreModel.idType.default. | `` |
frost.plugins.coreModel.idType.thing |
The type of the primary key column of the Thing table. Defaults to the value of frost.plugins.coreModel.idType.default. | `` |
frost.plugins.actuation.enable |
Toggle indicating the Actuation plugin should be enabled. | false |
frost.plugins.actuation.idType.actuator |
The type of the primary key column of the Actuator table. Defaults to the value of frost.plugins.coreModel.idType.default. | `` |
frost.plugins.actuation.idType.task |
The type of the primary key column of the Task table. Defaults to the value of frost.plugins.coreModel.idType.default. | `` |
frost.plugins.actuation.idType.taskingCapability |
The type of the primary key column of the TaskingCapability table. Defaults to the value of frost.plugins.coreModel.idType.default. | `` |
frost.plugins.multiDatastream.enable |
Toggle indicating the MultiDatastream plugin should be enabled. | false |
frost.plugins.multiDatastream.idType.multiDatastream |
The type of the primary key column of the MultiDatastream table. Defaults to the value of frost.plugins.coreModel.idType.default. | `` |
frost.plugins.modelLoader.enable |
Toggle indicating the ModelLoader plugin should be enabled. | false |
frost.plugins.modelLoader.modelPath |
Path to the model files that the ModelLoader plugin should load. | `` |
frost.plugins.modelLoader.modelFiles |
Comma-separated list of model files that the ModelLoader plugin should load. | `` |
frost.plugins.modelLoader.liquibasePath |
Path to the liquibase changelog files that the ModelLoader plugin should load. | `` |
frost.plugins.modelLoader.liquibaseFiles |
Comma-separated list of liquibase changelog files that the ModelLoader plugin should load. | `` |
frost.plugins.modelLoader.securityPath |
Path to the security definition files that the ModelLoader plugin should load. | `` |
frost.plugins.modelLoader.securityFiles |
Comma-separated list of security definition files that the ModelLoader plugin should load. | `` |
frost.plugins.modelLoader.metadataData |
A json-string containing extra data to add to the serverSettings object on the landing page. The added data is merged into the existing data. | `` |
frost.plugins.modelLoader.metadataPath |
The file path where extra metadata files are located. | `` |
frost.plugins.modelLoader.metadataFiles |
A comma-separated list of meta data files to load. Each file is loaded and its JSON-content is merged into the serverSettings object on the ROOT-URL. | `` |
frost.plugins.dataArray.enable |
Toggle indicating the DataArray plugin should be enabled. | true |
frost.plugins.csv.enable |
Toggle indicating the CSV plugin should be enabled. | true |
frost.plugins.geojson.enable |
Toggle indicating the GeoJSON plugin should be enabled. | true |
frost.plugins.batchProcessing.enable |
Toggle indicating the BatchProcessing plugin should be enabled. | true |
frost.plugins.odata.enable |
Toggle indicating the OData plugin should be enabled. | false |
frost.plugins.openApi.enable |
Toggle indicating the OpenApi plugin should be enabled. | false |
frost.auth.provider |
The java class used to configure authentication/authorisation (Short: basic / keycloak). | `` |
frost.auth.allowAnonymousRead |
If true, anonymous users are allowed to read (GET) data. | false |
frost.auth.authenticateOnly |
If true, the auth module only handles authentication, not authorisation. | false |
frost.auth.role.read |
The role in the external authentication system that represents read (GET) access. | `` |
frost.auth.role.create |
The role in the external authentication system that represents create (POST) access. | `` |
frost.auth.role.update |
The role in the external authentication system that represents update (PUT/PATCH) access. | `` |
frost.auth.role.delete |
The role in the external authentication system that represents delete (DELETE) access. | `` |
frost.auth.role.admin |
The role in the external authentication system that represents admin (DatabaseStatus) access. | `` |
frost.auth.realmName |
(Basic Auth) The name of the realm that the browser displays when asking for username and password. | `` |
frost.auth.plainTextPassword |
(Basic Auth) If true (the default), passwords are stored in plain text. Otherwise password are stored hashed. | true |
frost.auth.db.autoUpdateDatabase |
(Basic Auth) Automatically apply database updates. | false |
frost.auth.db.maximumConnection |
(Basic Auth) The maximum number of database connections to use. | `` |
frost.auth.db.maximumIdleConnection |
(Basic Auth) The maximum number of idle database connections to keep open. | `` |
frost.auth.db.minimumIdleConnection |
(Basic Auth) The minimum number of idle database connections to keep open. | `` |
frost.auth.keycloakConfig |
(Keycloak Auth) The json content of the keycloak json config file. | `` |
frost.auth.keycloakConfigFile |
(Keycloak Auth) The path to the keycloak json config file. | `` |
frost.auth.keycloakConfigUrl |
(Keycloak Auth) The URL on the Keycloak server that can be used to download the Keycloak config file. Usually this url is in the form of: https://keycloak.example.com/realms/[realm]/clients-registrations/install/[client id]. |
`` |
frost.auth.keycloakConfigSecret |
(Keycloak Auth) If the client has “access-type” set to “confidential” then a secret is required to download the configuration. This secret can be found in the configuration itself, in Keycloak. | `` |
frost.http.replicas |
Number of FROST-Server HTTP module replicas. | 1 |
frost.http.ports.http.nodePort |
The external port (node port) of the FROST-Server HTTP service, if not using Ingress. | 30080 |
frost.http.ports.http.servicePort |
The internal port of the FROST-Server HTTP module. | 80 |
frost.http.ingress.enabled |
If Ingress needs to be enabled for the FROST-Server HTTP module. See bellow for more information. | true |
frost.http.ingress.rewriteAnnotation |
Annotation, used for the ingress resource to rewrite the HTTP-Ingress request. This is specific for the ngixn ingress controller. If using an other ingress controller, adapt accordingly | nginx.ingress.kubernetes:io/rewrite-target |
frost.http.ingress.rewriteTarget |
Value for the rewriteAnnotation. Path, which is used to access the FROST-HTTP service. |
/FROST-Server/ |
frost.http.ingress.path |
Value for the path of the service in the ingress spec. |
/FROST-Server/ |
frost.http.ingress.annotations |
Annotations for the ingress definition. E.g. to define the ingress class use --set 'frost.http.ingress.annotations.kubernetes\.io/ingress\.class=nginx' |
nil |
frost.http.ingress.tls.enabled |
Enable tls for the ingress. | false |
frost.http.ingress.tls.secretName |
Name of the secret used for tls in the ingress definition. | nil |
frost.http.serviceHost |
The host used by the serviceRootURL mandatory FROST-Server configuration parameter. |
frost-server |
frost.http.serviceProtocol |
The protocol where the host will be available. | http |
frost.http.servicePort |
The external port of the FROST-Server HTTP module. If not set standard http(s) port is used, when ingress is enabled. Otherwise frost.http.ports.http.nodePort will be used. This value usefull when running a reverse proxy. |
nil |
frost.http.urlSubPath |
The suffix added to the service url. This value is usefull when FROST-Server is not running in the root path of the doamin, e.g. when using a reverse proxy. | nil |
frost.http.cors.enable |
If true, a filter is added to allow cross-site-scripting. |
false |
frost.http.cors.allowed.origins |
A list of origins that are allowed to access the resource. A * can be specified to enable access to resource from any origin. Otherwise, a whitelist of comma separated origins can be provided. Eg: http://www.w3.org, https://www.apache.org |
* |
frost.http.cors.allowed.methods |
A comma separated list of HTTP methods that can be used to access the resource, using cross-origin requests. These are the methods which will also be included as part of Access-Control-Allow-Methods header in pre-flight response. Eg: GET, POST |
GET, HEAD, OPTIONS |
frost.http.cors.allowed.headers |
A comma separated list of request headers that can be used when making an actual request. These headers will also be returned as part of Access-Control-Allow-Headers header in a pre-flight response. Eg: Origin,Accept |
Origin, Accept, X-Requested-With, Content-Type, Access-Control-Request-Method, Access-Control-Request-Headers, Authorization |
frost.http.cors.exposed.headers |
A comma separated list of headers other than simple response headers that browsers are allowed to access. These are the headers which will also be included as part of Access-Control-Expose-Headers header in the pre-flight response. Eg: X-CUSTOM-HEADER-PING,X-CUSTOM-HEADER-PONG |
Location |
frost.http.cors.support.credentials |
A flag that indicates whether the resource supports user credentials. This flag is exposed as part of Access-Control-Allow-Credentials header in a pre-flight response. It helps browser determine whether or not an actual request can be made using credentials. | false |
frost.http.cors.preflight.maxage |
The amount of seconds, browser is allowed to cache the result of the pre-flight request. This will be included as part of Access-Control-Max-Age header in the pre-flight response. A negative value will prevent CORS Filter from adding this response header to pre-flight response. | 1800 |
frost.http.cors.request.decorate |
A flag to control if CORS specific attributes should be added to HttpServletRequest object or not. | true |
frost.http.defaultCount |
The default value for the $count query option used by the FROST-Server HTTP module. | false |
frost.http.defaultTop |
The default value for the $top query option used by the FROST-Server HTTP module. | 100 |
frost.http.maxTop |
The maximum allowed value for the $top query option used by the FROST-Server HTTP module. | 1000 |
frost.http.useAbsoluteNavigationLinks |
If true, FROST-Server HTTP's navigationLinks are absolute, otherwise relative. |
true |
frost.http.db.autoUpdate |
Automatically apply database updates. | true |
frost.http.db.maximumConnection |
The maximum number of database connections used by the FROST-Server HTTP module. | 10 |
frost.http.db.maximumIdleConnection |
The maximum number of idle database connections to keep open by the FROST-Server HTTP module. | 10 |
frost.http.db.minimumIdleConnection |
The minimum number of idle database connections to keep open by the FROST-Server HTTP module. | 10 |
frost.http.bus.sendWorkerPoolSize |
The number of FROST-Server HTTP worker threads to handle sending messages to the bus. | 10 |
frost.http.bus.sendQueueSize |
The size of the FROST-Server HTTP message queue to buffer messages to be sent to the bus. | 100 |
frost.http.bus.recvWorkerPoolSize |
The number of FROST-Server HTTP worker threads to handle messages coming from the bus. | 10 |
frost.http.bus.maxInFlight |
The maximum number of FROST-Server HTTP in-flight messages to allow on the MQTT bus. | 50 |
frost.http.image.registry |
Image registry for the http module. | docker.io |
frost.http.image.repository |
Image for the http module. | fraunhoferiosb/frost-server-http |
frost.http.image.tag |
Imagetag for the http module. | {VERSION} |
frost.http.image.pullPolicy |
Image pull policy for the http module. | IfNotPresent |
frost.http.image.imagePullSecret |
Name of the pull secred to use when pulling the Image from the configured repository. | nil |
frost.http.resources.requests.cpu |
CPU requested by the http module. | 1Gi |
frost.http.resources.requests.memory |
Memory requested by the http module. | 500m |
frost.http.resources.limits.cpu |
CPU limit for the http module. | NIL |
frost.http.resources.limits.memory |
Memory limit for the http module. | NIL |
frost.http.envExtra |
Extra environment variables for the http module. See below for syntax. | nil |
frost.db.ports.postgresql.servicePort |
The internal port of the FROST-Server database service. | 5432 |
frost.db.persistence.enabled |
If data persistence needs to be enabled. See bellow for more information. | false |
frost.db.enableIntegratedDb |
If set, the Helm chart will deploy a internal Postgis database server. When disabled, you can use the value below to specify a external connection string. | true |
frost.db.dbExternalConnectionString |
If the setting frost.db.enableIntegratedDb is set to true, you can specify the connection to connect to an external Postgres / PostGIS database |
jdbc:postgresql://externaldbhost:5432/sensorthings |
frost.db.persistence.existingClaim |
If set, then use an existing PersistenceVolumeClaim for the FROST-Server database volume. See bellow for more information. | nil (use the builtin PersistenceVol) |
frost.db.persistence.storageClassName |
The StorageClassName to use by the FROST-Server database persistence. See bellow for more information. | nil (use the default StorageClass currently in use) |
frost.db.persistence.accessModes |
List of AccessModes to claim if FROST-Server database persistence is enabled. See bellow for more information. | {ReadWriteOnce} |
frost.db.persistence.capacity |
The storage capacity required by the FROST-Server database persistence. | 10Gi |
frost.db.persistence.mountPath |
The path the volume is mount into the database container. | /var/lib/postgresql/data |
frost.db.persistence.local.nodeMountPath |
The mount path to use if using the local StorageClassName as FROST-Server database StorageClass persistence. See bellow for more information. |
/mnt/frost-server-db |
frost.db.persistence.hostPath |
If frost.db.persistence.enabled is set to false. Than this variable can be used to mount this hostPath to the database container. |
nil |
frost.db.database |
The FROST-Server database name to use. | sensorthings |
frost.db.existingSecret |
If set, this secret is used for the database credentials. | nil |
frost.db.secretUsernameKey |
The key in the database secret for the username. Change if your secret differs. | db.username |
frost.db.secretPasswordKey |
The key in the database secret for the password. Change if your secret differs. | db.password |
frost.db.username |
The base64 username to use when connecting to the FROST-Server database. | c2Vuc29ydGhpbmdz (sensorthings) |
frost.db.password |
The base64 password to use when connecting to the FROST-Server database. | bm93eW91Y2FuY2hhbmdlaXQ= (nowyoucanchangeit) |
frost.db.idGenerationMode |
Determines how entity ids are generated by any FROST-Server module. See here for more information. | ServerGeneratedOnly |
frost.db.countMode |
The way to count entities. See here for more information. | FULL |
frost.db.implementationClass |
The Java class used for persistence by any FROST-Server module. | [...].PostgresPersistenceManagerLong (see [1] bellow for the complete value) |
frost.db.transactionRole |
If true, use SET LOCAL ROLE on database queries. |
false |
frost.db.image.registry |
Image registry for the database. | docker.io |
frost.db.image.repository |
Image for the database. | postgis/postgis |
frost.db.image.tag |
Imagetag for the database. | 14-3.2-alpine |
frost.db.image.pullPolicy |
Image pull policy for the bus. | IfNotPresent |
frost.db.image.imagePullSecret |
Name of the pull secred to use when pulling the Image from the configured repository. | nil |
frost.db.securityContext.runAsUser |
The user id of the database process. | nil |
frost.db.securityContext.runAsGroup |
The group id of the database process. | nil |
frost.db.securityContext.fsGroup |
The fsGroup of the database process. | nil |
frost.db.requiredHostname |
If this is set, an affinity rule will be added, so that the database pod will only be scheduled on the node with this hostname. | nil |
frost.db.driver |
The Database driver to use when not using JNDI. | org.postgresql.Driver |
frost.mqtt.enabled |
If MQTT support needs to be enabled. See bellow for more information. | true |
frost.mqtt.annotations |
It is possible to set certain annotation for the service. This can be handy when using metallb as a LoadBalancer. With the annotation option it is possible to set a static ip address for the service. |
true |
frost.mqtt.replicas |
The number of FROST-Server MQTT module replicas. | 1 |
frost.mqtt.serviceHost |
The external host name for the mqtt service. | same as frost.http.serviceHost |
frost.mqtt.serviceType |
The serviceType that Kubernetes will use when deploying the mqtt service. This can either be NodePort or LoadBalancer. When choosing LoadBalancer the service will directly be exposed on a separate ip address by the loadbalancer. This can be useful in cloud environments on if you run metallb for example. When using metallb you can optionally set a annotation so you can specify a specific ip address to the service. |
NodePort |
frost.mqtt.ports.mqtt.nodePort |
The external port (node port) of the FROST-Server MQTT service. | nil (port selected by Kubernetes) |
frost.mqtt.ports.mqtt.servicePort |
The internal port of the FROST-Server MQTT service. | 1883 |
frost.mqtt.ports.websocket.nodePort |
The external port (node port) of the FROST-Server MQTT websocket service. | nil (port selected by Kubernetes) |
frost.mqtt.ports.websocket.servicePort |
The internal port of the FROST-Server MQTT websocket service. | 9876 |
frost.mqtt.stickySessionTimeout |
Timeout (in seconds) of sticky time sessions used by the FROST-Server MQTT server. | 10800 (3 hours) |
frost.mqtt.qos |
Quality of Service Level for MQTT messages. | 2 |
frost.mqtt.subscribeMessageQueueSize |
Queue size for messages to be published via MQTT. | 100 |
frost.mqtt.subscribeThreadPoolSize |
Number of threads use to dispatch MQTT notifications. | 10 |
frost.mqtt.createMessageQueueSize |
Queue size for create observation requests via MQTT. | 100 |
frost.mqtt.createThreadPoolSize |
Number of threads use to dispatch observation creation requests. | 10 |
frost.mqtt.maxInFlight |
The maximum number of in-flight messages to allow when sending notifications. | 50 |
frost.mqtt.exposedEndpoints |
A comma separated list of MQTT endpoints to list on the index page. when not present, FROST will try to generate this list itself. | nil |
frost.mqtt.javaKeystorePath |
When using SSL (sslPort or secureWebsocketPort) this is the path to the key store with your certificates. | nil |
frost.mqtt.keyManagerPassword |
The password for the certificate itself. | nil |
frost.mqtt.keyStorePassword |
The password for the certificate keystore. | nil |
frost.mqtt.persistentStoreType |
The way the MQTT server keeps track of subscriptions, either in-memory (memory) or using an H2 database (h2). |
memory |
frost.mqtt.secureWebsocketPort |
The port the MQTT server is reachable via secure WebSocket. | nil |
frost.mqtt.session_queue_size |
The size of the internal queue the mqtt broker uses per CPU core. | 1024 |
frost.mqtt.persistent_client_expiration |
The maximum lifetime of disconnected sessions, postfix with s for seconds. |
3600s |
frost.mqtt.sslPort |
The port the MQTT server runs on, using ssl. | nil |
frost.mqtt.netty.mqtt.message_size |
The maximum size of MQTT messages. | 8092 (Bytes) |
frost.mqtt.host |
The external IP address or host name the MQTT server should listen on. Set by default to 0.0.0.0 to listen on all interfaces. | 0.0.0.0 |
frost.mqtt.internalHost |
The internal host name of the MQTT server. | localhost |
frost.mqtt.waitForEnter |
When true, and running in an interactive console, the FROST-MQTT component will read the keyboard input, and exit when the enter key is pressed. When false, the FROST-MQTT component has to be stopped by sending it a TERM Signal. | false |
frost.mqtt.db.alwaysOrderbyId |
Always add an orderby=id asc to to FROST-Server MQTT's database queries to ensure consistent paging. |
false |
frost.mqtt.db.maximumConnection |
The maximum number of database connections to use by the FROST-Server MQTT module. | 10 |
frost.mqtt.db.maximumIdleConnection |
The maximum number of idle database connections to keep open by the FROST-Server MQTT module. | 10 |
frost.mqtt.db.minimumIdleConnection |
The minimum number of idle database connections to keep open by the FROST-Server MQTT module. | 10 |
frost.mqtt.bus.sendWorkerPoolSize |
The number of FROST-Server MQTT worker threads to handle sending messages to the MQTT bus. | 10 |
frost.mqtt.bus.sendQueueSize |
The size of the FROST-Server MQTT message queue to buffer messages to be sent to the MQTT bus. | 100 |
frost.mqtt.bus.recvWorkerPoolSize |
The number of FROST-Server MQTT worker threads to handle messages coming from the MQTT bus. | 10 |
frost.mqtt.bus.maxInFlight |
The maximum number of FROST-Server MQTT in-flight messages to allow on the MQTT bus. | 50 |
frost.mqtt.image.registry |
Image registry for the mqtt module. | docker.io |
frost.mqtt.image.repository |
Image for the mqtt module. | fraunhoferiosb/frost-server-mqtt |
frost.mqtt.image.tag |
Imagetag for the mqtt module. | {VERSION} |
frost.mqtt.image.pullPolicy |
Image pull policy for the mqtt module. | IfNotPresent |
frost.mqtt.image.imagePullSecret |
Name of the pull secred to use when pulling the Image from the configured repository. | nil |
frost.mqtt.envExtra |
Extra environment variables for the mqtt module. See below for syntax. | nil |
frost.mqtt.ingress.enabled |
If Ingress needs to be enabled for the FROST-Server MQTT module. See bellow for more information. | true |
frost.mqtt.ingress.path |
Value for the path of the service in the ingress spec. Some clients assume this to be /mqtt. |
/mqtt |
frost.mqtt.ingress.annotations |
Annotations for the ingress definition. E.g. to define the ingress class use --set 'frost.http.ingress.annotations.kubernetes\.io/ingress\.class=nginx' |
nginx.ingress.kubernetes.io/proxy-read-timeout: 3600, nginx.ingress.kubernetes.io/proxy-send-timeout: 3600 |
frost.mqtt.ingress.tls.enabled |
Enable tls for the ingress. | false |
frost.mqtt.ingress.tls.secretName |
Name of the secret used for tls in the ingress definition. | nil |
frost.bus.ports.bus.servicePort |
The internal port of the FROST-Server Messages Bus service. | 1883 |
frost.bus.implementationClass |
The Java class that is used to connect to the message bus, common for any FROST-Server modules. | [...].MqttMessageBus (see [2] bellow for the complete value) |
frost.bus.topicName |
The MQTT topic to use as a message bus by any FROST-Server module. | FROST-Bus |
frost.bus.qosLevel |
The Quality of Service Level for the MQTT bus by any FROST-Server module. | 2 |
frost.bus.image.registry |
Image registry for the bus. | docker.io |
frost.bus.image.repository |
Image for the bus. | eclipse-mosquitto |
frost.bus.image.tag |
Imagetag for the bus. | 1.4.12 |
frost.bus.image.pullPolicy |
Image pull policy for the bus. | IfNotPresent |
frost.bus.image.imagePullSecret |
Name of the pull secred to use when pulling the Image from the configured repository. | nil |
frost.extension.customLinks.enable |
Enable the custom entity links extension. | false |
frost.extension.customLinks.recurseDepth |
Set how deep in properies the extension searches for custom links. | 0 (top level only) |
frost.extension.filterDelete.enable |
Enable the Filtered Delete extension. | false |
frost.backup.enabled |
Enable the automated creation of daily backups. | false |
frost.backup.image.registry |
Image registry for the database. | docker.io |
frost.backup.image.repository |
Image for the database. | kartoza/pg-backup |
frost.backup.image.tag |
Imagetag for the database. | 14-3.2 |
frost.backup.image.pullPolicy |
Image pull policy for the bus. | IfNotPresent |
frost.backup.image.imagePullSecret |
Name of the pull secred to use when pulling the Image from the configured repository. | nil |
frost.backup.removeBefore |
Remove all old backups older than specified amount of days. | 14 |
frost.backup.persistence.existingClaim |
If set, then use an existing PersistenceVolumeClaim for the backup volume. | nil (use the builtin PersistenceVol |
frost.backup.persistence.storageClassName |
The StorageClassName to use by the backup persistence. | nil (use the default StorageClass currently in use) |
frost.backup.persistence.accessModes |
List of AccessModes to claim if backup persistence is enabled. | {ReadWriteOnce} |
frost.backup.persistence.capacity |
The storage capacity required by the backup persistence. | 10Gi |
frost.backup.persistence.mountPath |
The path the volume is mount into the backup container. | /backups |
frost.backup.securityContext.runAsUser |
The user id of the backup process. | nil |
frost.backup.securityContext.runAsGroup |
The group id of the backup process. | nil |
frost.backup.securityContext.fsGroup |
The fsGroup of the backup process. | nil |
frost.logging.default |
The “root” log level. | INFO |
frost.logging.parser |
The log level for the de.fraunhofer.iosb.ilt.frostserver.parser package. |
INFO |
frost.logging.queries |
The log level for the de.fraunhofer.iosb.ilt.frostserver.persistence.pgjooq.QueryBuilder package. |
INFO |
frost.logging.requests |
The log level for the request decoder. When set to DEBUG each request with its headers will be logged. | INFO |
frost.logging.service |
The log level for the de.fraunhofer.iosb.ilt.frostserver.service package. When set to DEBUG, 4xx error details and 5xx stack traces will be logged. |
INFO |
frost.logging.settings |
The log level for the de.fraunhofer.iosb.ilt.frostserver.settings package. |
INFO |
frost.logging.moquette |
The log level for the io.moquette package. |
WARN |
frost.logging.liquibase |
The log level for the liquibase package. |
INFO |
frost.logging.jooq |
The log level for the org.jooq package. |
INFO |
[1]: The complete default
frost.db.implementationClassvalue isde.fraunhofer.iosb.ilt.frostserver.persistence.pgjooq.PostgresPersistenceManager.
[2]: The complete default
frost.bus.implementationClassvalue isde.fraunhofer.iosb.ilt.frostserver.messagebus.InternalMessageBus.
Specify each parameter using the --set key=value[,key=value] argument to helm install|upgrade. For example,
$ helm install my-release \
--set key_1=value_1,key_2=value_2 \
fraunhoferiosb/frost-server
Alternatively, a YAML file that specifies the values for the parameters can be provided while installing the chart. For example,
# example for staging
$ helm install my-release -f values.yaml fraunhoferiosb/frost-server
Tip: You can use the default values.yaml
More information about the FROST-Server configuration can be found here.
It is possible to pass extra environment variables to FROST using frost.envExtra, frost.http.envExtra and frost.mqtt.envExtra.
This variable accepts key-value pairs. Keys must be names usable for environment variables, values are quoted automatically.
# values.yaml
frost:
envExtra:
plugins_modelLoader_idType_User: string
plugins_modelLoader_idType_Role: string
They can also be passed directly on the command line.
Since it is not possible to include newline characters in value strings on the command line with escape characters like \n,
the sting must be quoted with newline characters in tact:
helm install my-release --set "frost.mqtt.envExtra=- name: plugins_modelLoader_idType_User
value: string
- name: plugins_modelLoader_idType_Role
value: string"
As described in the OGC SensorThings API specification, MQTT support is an optional extension but enabled by default in the FROST-Server Helm chart.
To disable MQTT support, override the frost.mqtt.enabled configuration value to false.
$ helm install --set frost.mqtt.enabled=false fraunhoferiosb/frost-server
By default, the FROST-Server database is working without data persistence. Thus, if the Helm release or the FROST-Server database pod is deleted, then all saved data is lost.
To enable data persistence, turn on the frost.db.persistence.enabled configuration parameter:
$ helm install --set frost.db.persistence.enabled=true fraunhoferiosb/frost-server
Once FROST-Server database persistence is enabled, then the FROST-Server will either:
- use its own PersistenceVolumeClaim, which is described bellow
- or use an existing PersistenceVolumeClaim, if the
frost.db.persistence.existingClaimis set
If persistence is enabled and no existing PersistenceVolumeClaim is defined (frost.db.persistence.existingClaim is unset), then the FROST-Server chart will claim a PersistentVolume that fits with its associated StorageClass name.
By default, no name is defined, then the default StorageClass currently in use in the Kubernetes cluster will be used.
But you can override this behaviour by setting the frost.db.persistence.storageClassName configuration value with your desired StorageClass name to use.
If necessary, the FROST-Server chart also defines its own StorageClass name, frost-server-db-local, bound to a builtin local volume, which stores data in a local directory within the cluster (more precisely within the node where this local volume is deployed).
To enable it, set the frost.db.persistence.storageClassName to frost-server-db-local and precise the folder where data need to be persisted on the node
$ helm install \
--set frost.db.persistence.enabled=true,frost.db.persistence.storageClassName=frost-server-db-local,frost.db.persistence.local.nodeMountPath=/mnt/frost-server-db \
fraunhoferiosb/frost-server
Warning #1: The
localStorageClass cannot be scaled.
Warning #2: The
localStorageClass can only be used if only the ReadWriteOnce AccessMode is claimed (check thefrost.db.persistence.accessModesconfiguration parameter).
It is also possible to create your own secret. To do so set the frost.db.existingSecret to your secret.
If your keys differ, you can also set them by setting frost.db.secretUsernameKey and frost.db.secretPasswordKey.
The FROST-Server HTTP component can be accessed through an Ingress controller, which is the recommended mode of operation. By default, Ingress is enabled but can be disabled using the frost.http.ingress.enabled option:
$ helm install --set frost.http.ingress.enabled=false fraunhoferiosb/frost-server
Or if you want to disable it in your current living my-release release:
$ helm upgrade --set frost.http.ingress.enabled=false my-release fraunhoferiosb/frost-server
Once Ingress is enabled on the FROST-Server HTTP component, then the FROST-Server HTTP API can be accessed at http://<frost.http.serviceHost> (http://frost-server by default), on the standard 80 HTTP port, without being constrained to specify the frost.http.ports.http.nodePort port.
Warning:
frost.http.serviceHostneeds to be a DNS name. Make sure to be able to resolve it by adding a rule either in your DNS server or in your local DNS resolver (e.g./etc/hostsin Unix-based environments).
Since the HTTP endpoint of FROST is reachable under the /FROST-Server-path, we leverage the Ingress rewriting capability.
Caution: Our configuration is specific for nginx ingress controller version 0.22.0 or above. It needs to be adjusted, if another ingress controller is used.
For nginx below 0.22.0 set
frost.http.ingress.rewriteTarget=/FROST-Serverandfrost.http.ingress.path=/
The FROST-Server MQTT component can be accessed through an Ingress controller, which is the recommended mode of operation. By default, Ingress is disabled but can be disabled using the frost.http.ingress.enabled option:
$ helm install --set frost.mqtt.ingress.enabled=true fraunhoferiosb/frost-server
Caution: Our configuration is specific for nginx ingress controller.