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Version: 1.0 (alpha)

wash scale

wash scale supports scaling the components in your lattice to handle concurrent requests. It accepts the host ID on which the component is running and the reference of the component to scale as required arguments. It also accepts a --max-concurrent value that specifies the maximum number of instances this component can run concurrently. By default, the value is an unbounded level of concurrency. A value of zero is equivalent to stopping the component.

Usage​

wash scale component <your-host-id> wasmcloud.azurecr.io/echo:0.3.7
wash scale component <your-host-id> wasmcloud.azurecr.io/echo:0.3.7 --max-concurrent=20

# Stopping the component
wash scale component <your-host-id> wasmcloud.azurecr.io/echo:0.3.7 --max-concurrent=0

Options​

--output (Alias -o) Specify output format (text or json) [default: text]

--ctl-host (Alias -r) CTL Host for connection, defaults to 127.0.0.1 for local nats [env: WASMCLOUD_CTL_HOST=]

--experimental Whether or not to enable experimental features [env: WASH_EXPERIMENTAL=]

--ctl-port (Alias -p) CTL Port for connections, defaults to 4222 for local nats [env: WASMCLOUD_CTL_PORT=]

--ctl-jwt JWT file for CTL authentication. Must be supplied with ctl_seed [env: WASMCLOUD_CTL_JWT]

--ctl-seed Seed file or literal for CTL authentication. Must be supplied with ctl_jwt [env: WASMCLOUD_CTL_SEED]

--ctl-credsfile Credsfile for CTL authentication. Combines ctl_seed and ctl_jwt. See https://docs.nats.io/using-nats/developer/connecting/creds for details [env: WASH_CTL_CREDS]

--js-domain JS domain for wasmCloud control interface. Defaults to None [env: WASMCLOUD_JS_DOMAIN]

--lattice-prefix (Alias -x) Lattice name for wasmCloud control interface, defaults to "default" [env: WASMCLOUD_LATTICE_PREFIX=]

--timeout-ms (Alias -t) Timeout length to await a control interface response, defaults to 2000 milliseconds [env: WASMCLOUD_CTL_TIMEOUT_MS=] [default: 2000]

--context Path to a context with values to use for CTL connection and authentication

--max-concurrent (Alias -c) Maximum number of instances this component can run concurrently. Omitting this value means there is no maximum

--annotations (Alias -a) Optional set of annotations used to describe the nature of this component scale command. For example, autonomous agents may wish to “tag” scale requests as part of a given deployment