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argocd_server.go
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argocd_server.go
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package commands
import (
"context"
"fmt"
"math"
"time"
"github.com/argoproj/pkg/stats"
"github.com/go-redis/redis/v8"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/tools/clientcmd"
cmdutil "github.com/argoproj/argo-cd/v2/cmd/util"
"github.com/argoproj/argo-cd/v2/common"
"github.com/argoproj/argo-cd/v2/pkg/apis/application/v1alpha1"
appclientset "github.com/argoproj/argo-cd/v2/pkg/client/clientset/versioned"
"github.com/argoproj/argo-cd/v2/reposerver/apiclient"
"github.com/argoproj/argo-cd/v2/server"
servercache "github.com/argoproj/argo-cd/v2/server/cache"
"github.com/argoproj/argo-cd/v2/util/cli"
"github.com/argoproj/argo-cd/v2/util/env"
"github.com/argoproj/argo-cd/v2/util/errors"
"github.com/argoproj/argo-cd/v2/util/kube"
"github.com/argoproj/argo-cd/v2/util/tls"
traceutil "github.com/argoproj/argo-cd/v2/util/trace"
)
const (
failureRetryCountEnv = "ARGOCD_K8S_RETRY_COUNT"
failureRetryPeriodMilliSecondsEnv = "ARGOCD_K8S_RETRY_DURATION_MILLISECONDS"
)
var (
failureRetryCount = 0
failureRetryPeriodMilliSeconds = 100
)
func init() {
failureRetryCount = env.ParseNumFromEnv(failureRetryCountEnv, failureRetryCount, 0, 10)
failureRetryPeriodMilliSeconds = env.ParseNumFromEnv(failureRetryPeriodMilliSecondsEnv, failureRetryPeriodMilliSeconds, 0, 1000)
}
// NewCommand returns a new instance of an argocd command
func NewCommand() *cobra.Command {
var (
redisClient *redis.Client
insecure bool
listenPort int
metricsPort int
otlpAddress string
glogLevel int
clientConfig clientcmd.ClientConfig
repoServerTimeoutSeconds int
baseHRef string
rootPath string
repoServerAddress string
dexServerAddress string
disableAuth bool
enableGZip bool
tlsConfigCustomizerSrc func() (tls.ConfigCustomizer, error)
cacheSrc func() (*servercache.Cache, error)
frameOptions string
contentSecurityPolicy string
repoServerPlaintext bool
repoServerStrictTLS bool
staticAssetsDir string
)
var command = &cobra.Command{
Use: cliName,
Short: "Run the ArgoCD API server",
Long: "The API server is a gRPC/REST server which exposes the API consumed by the Web UI, CLI, and CI/CD systems. This command runs API server in the foreground. It can be configured by following options.",
DisableAutoGenTag: true,
Run: func(c *cobra.Command, args []string) {
vers := common.GetVersion()
namespace, _, err := clientConfig.Namespace()
errors.CheckError(err)
vers.LogStartupInfo(
"ArgoCD API Server",
map[string]any{
"namespace": namespace,
"port": listenPort,
},
)
cli.SetLogFormat(cmdutil.LogFormat)
cli.SetLogLevel(cmdutil.LogLevel)
cli.SetGLogLevel(glogLevel)
config, err := clientConfig.ClientConfig()
errors.CheckError(err)
errors.CheckError(v1alpha1.SetK8SConfigDefaults(config))
tlsConfigCustomizer, err := tlsConfigCustomizerSrc()
errors.CheckError(err)
cache, err := cacheSrc()
errors.CheckError(err)
kubeclientset := kubernetes.NewForConfigOrDie(config)
appclientsetConfig, err := clientConfig.ClientConfig()
errors.CheckError(err)
errors.CheckError(v1alpha1.SetK8SConfigDefaults(appclientsetConfig))
config.UserAgent = fmt.Sprintf("argocd-server/%s (%s)", vers.Version, vers.Platform)
if failureRetryCount > 0 {
appclientsetConfig = kube.AddFailureRetryWrapper(appclientsetConfig, failureRetryCount, failureRetryPeriodMilliSeconds)
}
appClientSet := appclientset.NewForConfigOrDie(appclientsetConfig)
tlsConfig := apiclient.TLSConfiguration{
DisableTLS: repoServerPlaintext,
StrictValidation: repoServerStrictTLS,
}
// Load CA information to use for validating connections to the
// repository server, if strict TLS validation was requested.
if !repoServerPlaintext && repoServerStrictTLS {
pool, err := tls.LoadX509CertPool(
fmt.Sprintf("%s/server/tls/tls.crt", env.StringFromEnv(common.EnvAppConfigPath, common.DefaultAppConfigPath)),
fmt.Sprintf("%s/server/tls/ca.crt", env.StringFromEnv(common.EnvAppConfigPath, common.DefaultAppConfigPath)),
)
if err != nil {
log.Fatalf("%v", err)
}
tlsConfig.Certificates = pool
}
repoclientset := apiclient.NewRepoServerClientset(repoServerAddress, repoServerTimeoutSeconds, tlsConfig)
if rootPath != "" {
if baseHRef != "" && baseHRef != rootPath {
log.Warnf("--basehref and --rootpath had conflict: basehref: %s rootpath: %s", baseHRef, rootPath)
}
baseHRef = rootPath
}
argoCDOpts := server.ArgoCDServerOpts{
Insecure: insecure,
ListenPort: listenPort,
MetricsPort: metricsPort,
Namespace: namespace,
BaseHRef: baseHRef,
RootPath: rootPath,
KubeClientset: kubeclientset,
AppClientset: appClientSet,
RepoClientset: repoclientset,
DexServerAddr: dexServerAddress,
DisableAuth: disableAuth,
EnableGZip: enableGZip,
TLSConfigCustomizer: tlsConfigCustomizer,
Cache: cache,
XFrameOptions: frameOptions,
ContentSecurityPolicy: contentSecurityPolicy,
RedisClient: redisClient,
StaticAssetsDir: staticAssetsDir,
}
stats.RegisterStackDumper()
stats.StartStatsTicker(10 * time.Minute)
stats.RegisterHeapDumper("memprofile")
argocd := server.NewServer(context.Background(), argoCDOpts)
argocd.Init(context.Background())
lns, err := argocd.Listen()
errors.CheckError(err)
for {
var closer func()
ctx := context.Background()
ctx, cancel := context.WithCancel(ctx)
if otlpAddress != "" {
closer, err = traceutil.InitTracer(ctx, "argocd-server", otlpAddress)
if err != nil {
log.Fatalf("failed to initialize tracing: %v", err)
}
}
argocd.Run(ctx, lns)
cancel()
if closer != nil {
closer()
}
}
},
}
clientConfig = cli.AddKubectlFlagsToCmd(command)
command.Flags().BoolVar(&insecure, "insecure", env.ParseBoolFromEnv("ARGOCD_SERVER_INSECURE", false), "Run server without TLS")
command.Flags().StringVar(&staticAssetsDir, "staticassets", env.StringFromEnv("ARGOCD_SERVER_STATIC_ASSETS", "/shared/app"), "Directory path that contains additional static assets")
command.Flags().StringVar(&baseHRef, "basehref", env.StringFromEnv("ARGOCD_SERVER_BASEHREF", "/"), "Value for base href in index.html. Used if Argo CD is running behind reverse proxy under subpath different from /")
command.Flags().StringVar(&rootPath, "rootpath", env.StringFromEnv("ARGOCD_SERVER_ROOTPATH", ""), "Used if Argo CD is running behind reverse proxy under subpath different from /")
command.Flags().StringVar(&cmdutil.LogFormat, "logformat", env.StringFromEnv("ARGOCD_SERVER_LOGFORMAT", "text"), "Set the logging format. One of: text|json")
command.Flags().StringVar(&cmdutil.LogLevel, "loglevel", env.StringFromEnv("ARGOCD_REPO_SERVER_LOGLEVEL", "info"), "Set the logging level. One of: debug|info|warn|error")
command.Flags().IntVar(&glogLevel, "gloglevel", 0, "Set the glog logging level")
command.Flags().StringVar(&repoServerAddress, "repo-server", env.StringFromEnv("ARGOCD_SERVER_REPO_SERVER", common.DefaultRepoServerAddr), "Repo server address")
command.Flags().StringVar(&dexServerAddress, "dex-server", env.StringFromEnv("ARGOCD_SERVER_DEX_SERVER", common.DefaultDexServerAddr), "Dex server address")
command.Flags().BoolVar(&disableAuth, "disable-auth", env.ParseBoolFromEnv("ARGOCD_SERVER_DISABLE_AUTH", false), "Disable client authentication")
command.Flags().BoolVar(&enableGZip, "enable-gzip", env.ParseBoolFromEnv("ARGOCD_SERVER_ENABLE_GZIP", false), "Enable GZIP compression")
command.AddCommand(cli.NewVersionCmd(cliName))
command.Flags().IntVar(&listenPort, "port", common.DefaultPortAPIServer, "Listen on given port")
command.Flags().IntVar(&metricsPort, "metrics-port", common.DefaultPortArgoCDAPIServerMetrics, "Start metrics on given port")
command.Flags().StringVar(&otlpAddress, "otlp-address", env.StringFromEnv("ARGOCD_SERVER_OTLP_ADDRESS", ""), "OpenTelemetry collector address to send traces to")
command.Flags().IntVar(&repoServerTimeoutSeconds, "repo-server-timeout-seconds", env.ParseNumFromEnv("ARGOCD_SERVER_REPO_SERVER_TIMEOUT_SECONDS", 60, 0, math.MaxInt64), "Repo server RPC call timeout seconds.")
command.Flags().StringVar(&frameOptions, "x-frame-options", env.StringFromEnv("ARGOCD_SERVER_X_FRAME_OPTIONS", "sameorigin"), "Set X-Frame-Options header in HTTP responses to `value`. To disable, set to \"\".")
command.Flags().StringVar(&contentSecurityPolicy, "content-security-policy", env.StringFromEnv("ARGOCD_SERVER_CONTENT_SECURITY_POLICY", "frame-ancestors 'self';"), "Set Content-Security-Policy header in HTTP responses to `value`. To disable, set to \"\".")
command.Flags().BoolVar(&repoServerPlaintext, "repo-server-plaintext", env.ParseBoolFromEnv("ARGOCD_SERVER_REPO_SERVER_PLAINTEXT", false), "Use a plaintext client (non-TLS) to connect to repository server")
command.Flags().BoolVar(&repoServerStrictTLS, "repo-server-strict-tls", env.ParseBoolFromEnv("ARGOCD_SERVER_REPO_SERVER_STRICT_TLS", false), "Perform strict validation of TLS certificates when connecting to repo server")
tlsConfigCustomizerSrc = tls.AddTLSFlagsToCmd(command)
cacheSrc = servercache.AddCacheFlagsToCmd(command, func(client *redis.Client) {
redisClient = client
})
return command
}