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kvtool.go
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kvtool.go
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package runner
import (
"fmt"
"log"
"os"
"os/exec"
)
type KvtoolRunnerConfig struct {
FuryConfigTemplate string
ImageTag string
IncludeIBC bool
EnableAutomatedUpgrade bool
FuryUpgradeName string
FuryUpgradeHeight int64
FuryUpgradeBaseImageTag string
SkipShutdown bool
}
// KvtoolRunner implements a NodeRunner that spins up local chains with kvtool.
// It has support for the following:
// - running a Fury node
// - optionally, running an IBC node with a channel opened to the Fury node
// - optionally, start the Fury node on one version and upgrade to another
type KvtoolRunner struct {
config KvtoolRunnerConfig
}
var _ NodeRunner = &KvtoolRunner{}
// NewKvtoolRunner creates a new KvtoolRunner.
func NewKvtoolRunner(config KvtoolRunnerConfig) *KvtoolRunner {
return &KvtoolRunner{
config: config,
}
}
// StartChains implements NodeRunner.
// For KvtoolRunner, it sets up, runs, and connects to a local chain via kvtool.
func (k *KvtoolRunner) StartChains() Chains {
// install kvtool if not already installed
installKvtoolCmd := exec.Command("./scripts/install-kvtool.sh")
installKvtoolCmd.Stdout = os.Stdout
installKvtoolCmd.Stderr = os.Stderr
if err := installKvtoolCmd.Run(); err != nil {
panic(fmt.Sprintf("failed to install kvtool: %s", err.Error()))
}
// start local test network with kvtool
log.Println("starting fury node")
kvtoolArgs := []string{"testnet", "bootstrap", "--fury.configTemplate", k.config.FuryConfigTemplate}
// include an ibc chain if desired
if k.config.IncludeIBC {
kvtoolArgs = append(kvtoolArgs, "--ibc")
}
// handle automated upgrade functionality, if defined
if k.config.EnableAutomatedUpgrade {
kvtoolArgs = append(kvtoolArgs,
"--upgrade-name", k.config.FuryUpgradeName,
"--upgrade-height", fmt.Sprint(k.config.FuryUpgradeHeight),
"--upgrade-base-image-tag", k.config.FuryUpgradeBaseImageTag,
)
}
// start the chain
startFuryCmd := exec.Command("kvtool", kvtoolArgs...)
startFuryCmd.Env = os.Environ()
startFuryCmd.Env = append(startFuryCmd.Env, fmt.Sprintf("FURY_TAG=%s", k.config.ImageTag))
startFuryCmd.Stdout = os.Stdout
startFuryCmd.Stderr = os.Stderr
log.Println(startFuryCmd.String())
if err := startFuryCmd.Run(); err != nil {
panic(fmt.Sprintf("failed to start fury: %s", err.Error()))
}
// wait for chain to be live.
// if an upgrade is defined, this waits for the upgrade to be completed.
if err := waitForChainStart(kvtoolFuryChain); err != nil {
k.Shutdown()
panic(err)
}
log.Println("fury is started!")
chains := NewChains()
chains.Register("fury", &kvtoolFuryChain)
if k.config.IncludeIBC {
chains.Register("ibc", &kvtoolIbcChain)
}
return chains
}
// Shutdown implements NodeRunner.
// For KvtoolRunner, it shuts down the local kvtool network.
// To prevent shutting down the chain (eg. to preserve logs or examine post-test state)
// use the `SkipShutdown` option on the config.
func (k *KvtoolRunner) Shutdown() {
if k.config.SkipShutdown {
log.Printf("would shut down but SkipShutdown is true")
return
}
log.Println("shutting down fury node")
shutdownFuryCmd := exec.Command("kvtool", "testnet", "down")
shutdownFuryCmd.Stdout = os.Stdout
shutdownFuryCmd.Stderr = os.Stderr
if err := shutdownFuryCmd.Run(); err != nil {
panic(fmt.Sprintf("failed to shutdown kvtool: %s", err.Error()))
}
}