mirror of
https://github.com/dragonheim/gagent.git
synced 2025-05-24 08:56:47 -07:00
Adding support for a blockchain DB for agent history.
This commit is contained in:
parent
0d0695d195
commit
5e69931ed7
GPG key ID:
73196D10B8E65666
7 changed files with 199 additions and 147 deletions
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@ -1,6 +1,7 @@
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package main
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import (
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sha "crypto/sha256"
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fmt "fmt"
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ioutil "io/ioutil"
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log "log"
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@ -8,6 +9,8 @@ import (
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os "os"
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sync "sync"
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fqdn "github.com/Showmax/go-fqdn"
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autorestart "github.com/slayer/autorestart"
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gs "git.dragonheim.net/dragonheim/gagent/internal/gstructs"
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@ -53,11 +56,9 @@ var exitCodes = struct {
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}}
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var config gs.GagentConfig
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var agent gs.AgentDetails
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func main() {
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autorestart.StartWatcher()
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http.Handle("/metrics", promhttp.Handler())
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filter := &logutils.LevelFilter{
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Levels: []logutils.LogLevel{"DEBUG", "INFO", "WARN", "ERROR"},
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MinLevel: logutils.LogLevel("DEBUG"),
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@ -65,46 +66,153 @@ func main() {
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}
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log.SetOutput(filter)
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var agent gs.Agent
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// config.File = "/etc/gagent/gagent.hcl"
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log.Printf("[DEBUG] Configuration is %v\n", config)
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// config.Name, _ = os.Hostname()
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// config.Mode = "setup"
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switch config.Mode {
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case "client":
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log.Printf("[INFO] Running in client mode\n")
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if len(config.Routers) == 0 {
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log.Printf("[ERROR] No routers defined.\n")
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os.Exit(exitCodes.m["NO_ROUTERS_DEFINED"])
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}
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var err error
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if config.CMode {
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agent.ScriptCode, err = ioutil.ReadFile(config.File)
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if err != nil {
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log.Printf("[ERROR] No such file or directory: %s", config.File)
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os.Exit(exitCodes.m["AGENT_LOAD_FAILED"])
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}
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agent.Shasum = fmt.Sprintf("%x", sha.Sum256(agent.ScriptCode))
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agent.Status = "loaded"
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log.Printf("[DEBUG] SHA256 of Agent file: %s", agent.Shasum)
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}
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wg.Add(1)
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go gc.Main(&wg, config, string(agent.ScriptCode))
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case "router":
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log.Printf("[INFO] Running in router mode\n")
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if len(config.Workers) == 0 {
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log.Printf("[ERROR] No workers defined.\n")
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os.Exit(exitCodes.m["NO_WORKERS_DEFINED"])
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}
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wg.Add(1)
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go gr.Main(&wg, config)
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case "worker":
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log.Printf("[INFO] Running in worker mode\n")
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if len(config.Routers) == 0 {
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log.Printf("[ERROR] No routers defined.\n")
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os.Exit(exitCodes.m["NO_ROUTERS_DEFINED"])
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}
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wg.Add(1)
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go gw.Main(&wg, config)
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case "setup":
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log.Printf("[INFO] Running in setup mode\n")
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f := hclwrite.NewEmptyFile()
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rootBody := f.Body()
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rootBody.SetAttributeValue("name", cty.StringVal(config.Name))
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rootBody.SetAttributeValue("mode", cty.StringVal(config.Mode))
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rootBody.SetAttributeValue("uuid", cty.StringVal(config.UUID))
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rootBody.AppendNewline()
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routerBlock1 := rootBody.AppendNewBlock("router", []string{config.Name})
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routerBody1 := routerBlock1.Body()
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routerBody1.SetAttributeValue("routerid", cty.StringVal(config.UUID))
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routerBody1.SetAttributeValue("address", cty.StringVal("127.0.0.1"))
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routerBody1.SetAttributeValue("clientport", cty.NumberIntVal(config.ClientPort))
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rootBody.AppendNewline()
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log.Printf("\n%s", f.Bytes())
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os.Exit(exitCodes.m["SUCCESS"])
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default:
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log.Printf("[ERROR] Unknown operating mode, exiting.\n")
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os.Exit(exitCodes.m["INVALID_MODE"])
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}
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wg.Wait()
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os.Exit(exitCodes.m["SUCCESS"])
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}
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func init() {
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var err error
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autorestart.StartWatcher()
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http.Handle("/metrics", promhttp.Handler())
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/*
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* Start Prometheus metrics exporter
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*/
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go http.ListenAndServe(fmt.Sprintf("%s:%d", config.ListenAddr, config.ClientPort), nil)
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/*
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* Initialize the exit codes
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*/
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exitCodes.m["SUCCESS"] = 0
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exitCodes.m["INVALID_MODE"] = 1
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exitCodes.m["CONFIG_FILE_MISSING"] = 2
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exitCodes.m["NO_ROUTERS_DEFINED"] = 3
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exitCodes.m["NO_WORKERS_DEFINED"] = 4
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exitCodes.m["AGENT_NOT_DEFINED"] = 5
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exitCodes.m["AGENT_LOAD_FAILED"] = 6
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/*
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* Initialize the configuration
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*/
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config.Version = semVER
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config.File = "/etc/gagent/gagent.hcl"
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config.Mode = "setup"
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config.Name, _ = fqdn.FqdnHostname()
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/*
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* Set a default UUID for this node.
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* This is used throughout the G'Agent system to uniquely identify this node.
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* It can be overridden in the configuration file by setting uuid
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*/
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// identity := uuid.NewV4UUID()
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// config.UUID = identity.String()
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config.UUID = uuid.NewV4UUID().String()
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/*
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* By default, we want to listen on all IP addresses. It can be overridden
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* in the configuration file by setting listenaddr
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*/
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// config.ListenAddr = "0.0.0.0"
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config.ListenAddr = "0.0.0.0"
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/*
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* By default, G'Agent client will use port 35571 to communicate with the
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* routers, but you can override it by setting the clientport in the
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* configuration file
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*/
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// config.ClientPort = 35571
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config.ClientPort = 35571
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/*
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* By default, G'Agent router will use port 35572 to communicate with
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* other routers, but you can override it by setting the routerport in
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* the configuration file
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*/
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// config.RouterPort = 35570
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config.RouterPort = 35570
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/*
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* By default, G'Agent worker will use port 35570 to communicate with the
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* routers, but you can override it by setting the workerport in the
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* configuration file
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*/
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// config.WorkerPort = 35572
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config.WorkerPort = 35572
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config.Clients = make([]*gs.ClientDetails, 0)
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config.Routers = make([]*gs.RouterDetails, 0)
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config.Workers = make([]*gs.WorkerDetails, 0)
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/*
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* Create a usage variable and then use that to declare the arguments and
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@ -148,15 +256,15 @@ func main() {
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opts, _ := docopt.ParseArgs(usage, nil, semVER)
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log.Printf("[DEBUG] Arguments are %v\n", opts)
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log.Printf("[DEBUG] Config is %v\n", config)
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if opts["--config"] != nil {
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config.File = opts["--config"].(string)
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}
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/*
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* Start Prometheus metrics exporter
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*/
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go http.ListenAndServe(fmt.Sprintf("%s:%d", config.ListenAddr, config.ClientPort), nil)
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err = hclsimple.DecodeFile(config.File, nil, &config)
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if err != nil && opts["setup"] == false {
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log.Printf("[ERROR] Failed to load configuration file: %s.\n", config.File)
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os.Exit(exitCodes.m["CONFIG_FILE_MISSING"])
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}
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/*
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* Let the command line mode override the configuration.
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@ -164,20 +272,24 @@ func main() {
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if opts["setup"] == true {
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config.Mode = "setup"
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} else {
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err := hclsimple.DecodeFile(config.File, nil, &config)
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if err != nil {
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log.Printf("[ERROR] Failed to load configuration file: %s.\n%s\n", config.File, err)
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os.Exit(exitCodes.m["CONFIG_FILE_MISSING"])
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}
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if opts["client"] == true {
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config.Mode = "client"
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if opts["--agent"] == nil {
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log.Printf("[ERROR] Agent file not specified")
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os.Exit(exitCodes.m["AGENT_NOT_DEFINED"])
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} else {
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config.File = opts["--agent"].(string)
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}
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if opts["pull"] == true {
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config.CMode = false
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}
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if opts["push"] == true {
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config.CMode = true
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}
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}
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if opts["router"] == true {
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config.Mode = "router"
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}
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@ -185,108 +297,6 @@ func main() {
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config.Mode = "worker"
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}
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}
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config.Version = semVER
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log.Printf("[DEBUG] Configuration is %v\n", config)
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switch config.Mode {
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case "client":
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log.Printf("[INFO] Running in client mode\n")
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if len(config.Routers) == 0 {
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log.Printf("[ERROR] No routers defined.\n")
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os.Exit(exitCodes.m["NO_ROUTERS_DEFINED"])
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}
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if opts["--agent"] == nil {
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log.Printf("[ERROR] Agent file not specified")
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os.Exit(exitCodes.m["AGENT_NOT_DEFINED"])
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}
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// var agent []byte
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var err error
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if config.CMode {
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agent.ScriptCode, err = ioutil.ReadFile(opts["--agent"].(string))
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if err != nil {
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log.Printf("[ERROR] Failed to load Agent file: %s", opts["--agent"])
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os.Exit(exitCodes.m["AGENT_LOAD_FAILED"])
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}
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}
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wg.Add(1)
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go gc.Main(&wg, config, string(agent.ScriptCode))
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case "router":
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log.Printf("[INFO] Running in router mode\n")
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if len(config.Workers) == 0 {
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log.Printf("[ERROR] No workers defined.\n")
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os.Exit(exitCodes.m["NO_WORKERS_DEFINED"])
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}
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wg.Add(1)
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go gr.Main(&wg, config)
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case "worker":
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log.Printf("[INFO] Running in worker mode\n")
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if len(config.Routers) == 0 {
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log.Printf("[ERROR] No routers defined.\n")
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os.Exit(exitCodes.m["NO_ROUTERS_DEFINED"])
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}
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wg.Add(1)
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go gw.Main(&wg, config)
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case "setup":
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log.Printf("[INFO] Running in setup mode\n")
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f := hclwrite.NewEmptyFile()
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rootBody := f.Body()
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rootBody.SetAttributeValue("name", cty.StringVal(config.Name))
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rootBody.SetAttributeValue("mode", cty.StringVal(config.Mode))
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rootBody.SetAttributeValue("uuid", cty.StringVal(config.UUID))
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rootBody.AppendNewline()
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routerBlock1 := rootBody.AppendNewBlock("router", []string{config.Name})
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routerBody1 := routerBlock1.Body()
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routerBody1.SetAttributeValue("routerid", cty.StringVal(config.UUID))
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routerBody1.SetAttributeValue("address", cty.StringVal("127.0.0.1"))
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rootBody.AppendNewline()
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log.Printf("\n%s", f.Bytes())
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os.Exit(exitCodes.m["SUCCESS"])
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default:
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log.Printf("[ERROR] Unknown operating mode, exiting.\n")
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os.Exit(exitCodes.m["INVALID_MODE"])
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}
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wg.Wait()
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os.Exit(exitCodes.m["SUCCESS"])
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}
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func init() {
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// Initialize the configuration
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config.Mode = "setup"
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config.Name, _ = os.Hostname()
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config.UUID = uuid.NewV4UUID().String()
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config.ListenAddr = "0.0.0.0"
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config.ClientPort = 35571
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config.RouterPort = 35570
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config.WorkerPort = 35572
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config.Clients = make([]*gs.ClientDetails, 0)
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config.Routers = make([]*gs.RouterDetails, 0)
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config.Workers = make([]*gs.WorkerDetails, 0)
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config.File = "/etc/gagent/gagent.hcl"
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config.Version = semVER
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// Initialize the exit codes
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// exitCodes.m = make(map[string]int)
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exitCodes.m["SUCCESS"] = 0
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exitCodes.m["INVALID_MODE"] = 1
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exitCodes.m["CONFIG_FILE_MISSING"] = 2
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exitCodes.m["NO_ROUTERS_DEFINED"] = 3
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exitCodes.m["NO_WORKERS_DEFINED"] = 4
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exitCodes.m["AGENT_NOT_DEFINED"] = 5
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exitCodes.m["AGENT_LOAD_FAILED"] = 6
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log.Printf("[DEBUG] Config is %v\n", config)
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}
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