isle/docs/dev/daemon-process-tree.plantuml

@startuml
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state "./isle daemon -c ./daemon.yml" as init

state AppDir {

    note "All relative paths are relative to the root of the AppDir" as N1

    state "./AppRun" as AppRun {
        AppRun : * Set PATH to APPDIR/bin
    }

    state "./bin/entrypoint daemon -c ./daemon.yml" as entrypoint {
        entrypoint : * Create runtime dir at $_RUNTIME_DIR_PATH
        entrypoint : * Lock runtime dir
        entrypoint : * Merge given and default daemon.yml files
        entrypoint : * Copy bootstrap.json into $_DATA_DIR_PATH, if it's not there
        entrypoint : * Merge daemon.yml config into bootstrap.json
        entrypoint : * Create $_RUNTIME_DIR_PATH/dnsmasq.conf
        entrypoint : * Create $_RUNTIME_DIR_PATH/nebula.yml
        entrypoint : * Create $_RUNTIME_DIR_PATH/garage-N.toml\n  (one per storage allocation)
        entrypoint : * Run child processes
        entrypoint : * (in the background) Updates garage cluster layout
        entrypoint : * (in the background) Stores host info in global bucket
    }

    init --> AppRun : exec
    AppRun --> entrypoint : exec

    state "./bin/dnsmasq -d -C $_RUNTIME_DIR_PATH/dnsmasq.conf" as dnsmasq
    entrypoint --> dnsmasq : child

    state "./bin/nebula -config $_RUNTIME_DIR_PATH/nebula.yml" as nebula
    entrypoint --> nebula : child

    state "./bin/garage -c $_RUNTIME_DIR_PATH/garage-N.toml server" as garage
    entrypoint --> garage : child (one per storage allocation)
}

@enduml