Canonical Livepatch Server K8S

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• auth.basic.enabled | boolean

  Whether basic auth should be used.

• auth.basic.users | string

  A comma separated list of "user:password" pairs used for authentication.

• auth.sso.enabled | boolean

  Note: Currently not available for on-prem users! Whether or not OIDCSSO authentication should be enabled.

• auth.sso.public-key | string

  Public key for the auth server

• auth.sso.teams | string

  Note: Currently not available for on-prem users! A list of comma separated launchpad teams that are allowed access when connecting to the admin tool by SSO authentication.

• auth.sso.url | string

  URL to access for SSO auth.

• cloud_delay.default_delay_hours | int

  Default delay hours for clouds/regions/azs without predefined delay hours.

• cloud_delay.enabled | boolean

  Whether to enable the delayed roll-out of patches based on a client's cloud.

• contracts.enabled | boolean

  Whether use of the contracts service is enabled.

• contracts.password | string

  Password to authenticate with backend contracts service.

• contracts.url | string

  Default: https://contracts.canonical.com

  URL to hit for the contracts service

• contracts.user | string

  Username to authenticate with backend contracts service.

• database.connection-lifetime-max | string

  Default: 10m

  The lifespan of an idle PostgreSQL connection.

• database.connection-pool-max | int

  Default: 10

  The maximum pool of connections to PostgreSQL.

• external_hostname | string

  Default: livepatch.canonical.com

  External hostname the app should respond to (required).

• influx.bucket | string

  Bucket to send data

• influx.enabled | boolean

  Enables influx db support for time series reporting.

• influx.organization | string

  Organization name

• influx.token | string

  Token to use for influx

• influx.url | string

  URL to connect to influx DB

• kpi-reports.enabled | string

  Note: Currently not available for on-prem users! Key performance index: Metrics. Enables KPI worker - sends metrics to Influx.

• kpi-reports.interval | string

  Default: 5m

  Note: Currently not available for on-prem users! Specifies KPI worker frequency.

• machine-reports.database.cleanup-interval | string

  Default: 6h

  Time between report cleanup runs.

• machine-reports.database.cleanup-row-limit | int

  Default: 1000

  Maximum number of rows to remove with a single report cleanup row.

• machine-reports.database.enabled | boolean

  Whether or not to enabled machine reports writes to PostgreSQL.

• machine-reports.database.retention-days | int

  Default: 10

  A thing used by the charm.

• machine-reports.event-bus.brokers | string

  The list of kafka brokers, comma separated to use for pushing reports.

• machine-reports.event-bus.ca-cert | string

  The X509 intermediate or root certificate authority certificate to use for mTLS authorisation.

• machine-reports.event-bus.client-cert | string

  The X509 client certificate to use for mTLS authorisation.

• machine-reports.event-bus.client-key | string

  The X509 private key associated with the client certificate to use for mTLS authorisation.

• machine-reports.event-bus.enabled | boolean

  Whether or not to enable machine reports writes to kafka.

• machine-reports.event-bus.kafka-version | string

  The kafka version you wish to specifically bind to, when not provided, the kafka version is not validated.

• patch-blocklist.enabled | boolean

  Whether or not to enable patch blocklist functionality for the admin tool.

• patch-blocklist.refresh-interval | string

  Default: 5m

  How often to check for new blocklist entries.

• patch-cache.cache-size | int

  Default: 128

  The size of the cache in patches.

• patch-cache.cache-ttl | string

  Default: 10m

  How long to persist a patch in cache whilst it has not been actively retrieved.

• patch-cache.enabled | boolean

  Whether or not to cache patches.

• patch-storage.filesystem-path | string

  Default: /home/livepatchu/.livepatch/patches

  The filesystem path to store patches.

• patch-storage.postgres-connection-string | string

  A connection string URI to a PostgreSQL database for patch storage. When set to an empty string, it is handled by relation and uses the same database cluster that livepatch server uses for state. The database name is 'livepatch'. If this is to be changed, it is expected that the database you wish to connect to is created manually.

• patch-storage.s3-access-key | string

  AWS programmatic API access key.

• patch-storage.s3-bucket | string

  The S3 bucket to store patches within.

• patch-storage.s3-endpoint | string

  The S3 API presigned endpoint.

• patch-storage.s3-region | string

  The AWS region for this S3 storage.

• patch-storage.s3-secret-key | string

  AWS programmatic API secret key.

• patch-storage.s3-secure | boolean

  Whether or not to perform TLS.

• patch-storage.swift-api-key | string

  An authorisation API key for swift.

• patch-storage.swift-auth-url | string

  The authorisation URL for swift.

• patch-storage.swift-container | string

  The swift blob storage location for storing patches.

• patch-storage.swift-domain | string

  The domain the containers reside under in swift for storing patches.

• patch-storage.swift-region | string

  The region assigned to this domain and tenant.

• patch-storage.swift-tenant | string

  The tenant account name for your container and API service user to connect under.

• patch-storage.swift-username | string

  The Swift username to login against when using API key authorisation.

• patch-storage.type | string

  Default: filesystem

  The storage type to be used by the charm, defaults to filesystem. The path can be located under: /var/snap/canonical-livepatch-server/common/patches The available options are: - filesystem - swift - postgres - s3 When using postgres for storage, the charm will work automatically by means of relation. The default database name is under: livepatch The database name can be changed but must be created.

• patch-sync.architectures | string

  Comma-separated list of architectures to download patches for. When no value is present, all are synced. If this field is empty, the patch sync will gather all architectures.

• patch-sync.enabled | boolean

  Whether or not if this instance of Livepatch Server should sync patches from another instance. A sync is effectively a "shared" storage, having access to the same pool of patches as the upstream services patch storage.

• patch-sync.flavors | string

  Default: generic,lowlatency,aws

  A comma separated list of kernel flavors to download patches for. If this field is empty, the patch sync will gather all flavors.

• patch-sync.interval | string

  Default: 1h

  Period between automatic patch snapshot downloads.

• patch-sync.machine-count-strategy | string

  Default: bucket

  The strategy to use when counting machines in a set.

• patch-sync.minimum-kernel-version | string

  A minimum kernel version of format "0.0.0" denoting the lowest kernel version to download patches for. When no value is present, all are synced. For example, "5.4.0" will sync "5.4.0" and up.

• patch-sync.proxy.enabled | boolean

  Whether or not to proxy patch syncs.

• patch-sync.proxy.http | string

  A comma separated list HTTP proxies to query for patches.

• patch-sync.proxy.https | string

  A comma separated list HTTPS proxies to query for patches.

• patch-sync.proxy.no-proxy | string

  A comma separated list of domains, IP CIDRs and/or ports to block.

• patch-sync.send-machine-reports | boolean

  Enable sending reports from local machines during patch synchronisation.

• patch-sync.upstream-url | string

  Default: https://livepatch.canonical.com

  Livepatch server to download patch snapshots from.

• profiler.block_profile_rate | int

  Default: 50000

  this is the sampling average of one blocking event per `BlockProfileRate` nanoseconds spent blocked. For example, set rate to 1000000000 (aka int(time.Second.Nanoseconds())) to record one sample per second a goroutine is blocked. It is recommended to set this to values greater than 10,000. For more info, visit this: https://github.com/DataDog/go-profiler-notes/blob/main/block.md#benchmarks

• profiler.enabled | boolean

  Whether to enable or disable continuous profiling on the server or not.

• profiler.hostname | string

  the hostname of the server the profiler is running on. This is used as a tag to group metrics by the server it is running on.

• profiler.mutex_profile_fraction | int

  Default: 5

  this turns on mutex profiles with rate indicating the fraction of mutex contention events reported in the mutex profile. On average, 1/rate events are reported. Setting an aggressive rate can hurt performance. ProfileMutexes must be True

• profiler.profile_allocations | boolean

  this will profile the memory for allocated space as well as allocated objects

• profiler.profile_blocks | boolean

  would profile blocking events (channels, select, etc) with the BlockProfileRate frequency.

• profiler.profile_goroutines | boolean

  would profile separate concurrent running gorountines.

• profiler.profile_inuse | boolean

  this will profile the overall used memory as well as the memory used by objects

• profiler.profile_mutexes | boolean

  this turns on profiling for mutexes

• profiler.sample_rate | int

  Default: 100

  sample rate for the profiler in Hz. 100 means reading 100 times per second.

• profiler.server_address | string

  The pyroscope server address to send the metrics to.

• profiler.upload_rate | int

  The frequency of upload to the profiling server

• server.burst-limit | int

  Default: 500

  The maximum number of concurrently incoming requests. After this limit, requests are queued according to the following: concurrency-limit - burst_limit For defaults, this is: 1000 - 500 = 500 (Maximum queue). Once the queue is reached, subsequent requests are rejected.

• server.concurrency-limit | int

  Default: 1000

  Maximum number of API requests being served concurrently.

• server.is-hosted | boolean

  Defines whether the server will act as an on-prem server (i.e. fetching patches from the hosted server), or will act as a hosted server.

• server.log-level | string

  Default: info

  The servers log level.

• server.redirect-downloads | boolean

  When true, the server will redirect downloads directed at its /v1/patches/{filename} endpoint to the endpoint defined in the server.url-template config option. This is useful if you want patch downloads to be redirected to a fileserver fronting patches. Note: Do not enable this option if the server.url-template is configured as the Livepatch-server as this will result in a redirect loop.

• server.url-template | string

  Template string to use when making URLs for giving back to the client. e.g. https://livepatch-hosting.com/v1/patches/{filename} This will need to be configured once the url or ip address of the service is known.