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Feature: INSTALL_PREFIX to relocate the agent installation #80

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Feature: INSTALL_PREFIX to relocate the agent installation #80

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23d80a8
feat: Implement install prefix
NiceGuyIT Apr 23, 2026
84ffe05
Merge branch 'amidaware:develop' into develop
NiceGuyIT Jul 25, 2026
45ac31f
Merge branch 'develop' into feat/implement-install-prefix
NiceGuyIT Sep 13, 2026
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34 changes: 27 additions & 7 deletions agent/agent.go
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Original file line number Diff line number Diff line change
Expand Up @@ -99,18 +99,38 @@ const (
winExeName = "tacticalrmm.exe"
winSvcName = "tacticalrmm"
meshSvcName = "mesh agent"
etcConfig = "/etc/tacticalagent"
nixAgentDir = "/opt/tacticalagent"
nixMeshDir = "/opt/tacticalmesh"
nixAgentBin = nixAgentDir + "/tacticalagent"
nixAgentBinDir = nixAgentDir + "/bin"
nixAgentEtcDir = nixAgentDir + "/etc"
nixMeshAgentBin = nixMeshDir + "/meshagent"
macPlistPath = "/Library/LaunchDaemons/tacticalagent.plist"
macPlistName = "tacticalagent"
defaultMacMeshSvcDir = "/usr/local/mesh_services"
)

// Unix paths are prefixed with installPrefix so the agent can run on systems where /etc and /opt are read-only.
// I.e. NixOS, TrueNAS Scale, diskless images.
var (
installPrefix = ""
etcConfig = "/etc/tacticalagent"
nixAgentDir = "/opt/tacticalagent"
nixMeshDir = "/opt/tacticalmesh"
nixAgentBin = nixAgentDir + "/tacticalagent"
nixAgentBinDir = nixAgentDir + "/bin"
nixAgentEtcDir = nixAgentDir + "/etc"
nixMeshAgentBin = nixMeshDir + "/meshagent"
)

// SetInstallPrefix relocates the Unix agent/config/mesh trees under a single
// writable root. Must be called before Agent.New or any install/read path so
// the derived paths observe the prefix.
func SetInstallPrefix(prefix string) {
installPrefix = strings.TrimRight(prefix, "/")
etcConfig = installPrefix + "/etc/tacticalagent"
nixAgentDir = installPrefix + "/opt/tacticalagent"
nixMeshDir = installPrefix + "/opt/tacticalmesh"
nixAgentBin = nixAgentDir + "/tacticalagent"
nixAgentBinDir = nixAgentDir + "/bin"
nixAgentEtcDir = nixAgentDir + "/etc"
nixMeshAgentBin = nixMeshDir + "/meshagent"
}

var defaultWinTmpDir = filepath.Join(os.Getenv("PROGRAMDATA"), "TacticalRMM")
var winMeshDir = filepath.Join(os.Getenv("PROGRAMFILES"), "Mesh Agent")
var natsCheckin = []string{"agent-hello", "agent-agentinfo", "agent-disks", "agent-winsvc", "agent-publicip", "agent-wmi"}
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1 change: 1 addition & 0 deletions agent/agent_unix.go
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Expand Up @@ -141,6 +141,7 @@ func (a *Agent) osString() string {
func NewAgentConfig() *rmm.AgentConfig {
viper.SetConfigName("tacticalagent")
viper.SetConfigType("json")
viper.AddConfigPath(filepath.Dir(etcConfig))
viper.AddConfigPath("/etc/")
viper.AddConfigPath(".")
err := viper.ReadInConfig()
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5 changes: 5 additions & 0 deletions main.go
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Expand Up @@ -56,8 +56,13 @@ func main() {
proxy := flag.String("proxy", "", "Use a http proxy")
insecure := flag.Bool("insecure", false, "Insecure for testing only")
natsport := flag.String("natsport", "", "nats standard port")
installPrefix := flag.String("install-prefix", os.Getenv("INSTALL_PREFIX"), "Unix install path prefix. Defaults to $INSTALL_PREFIX")
flag.Parse()

if *installPrefix != "" {
agent.SetInstallPrefix(*installPrefix)
}

if *ver {
agent.ShowVersionInfo(version)
return
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