mirror of
https://github.com/gitpod-io/gitpod.git
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99 lines
2.6 KiB
Go
99 lines
2.6 KiB
Go
// Copyright (c) 2020 Gitpod GmbH. All rights reserved.
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// Licensed under the GNU Affero General Public License (AGPL).
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// See License-AGPL.txt in the project root for license information.
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package cmd
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import (
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"encoding/json"
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"fmt"
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"os"
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"github.com/spf13/cobra"
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"golang.org/x/xerrors"
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"github.com/gitpod-io/gitpod/common-go/log"
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"github.com/gitpod-io/gitpod/common-go/tracing"
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"github.com/gitpod-io/gitpod/ws-proxy/pkg/proxy"
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)
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var (
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// ServiceName is the name we use for tracing/logging
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ServiceName = "ws-proxy"
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// Version of this service - set during build
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Version = ""
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)
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// rootCmd represents the base command when called without any subcommands
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var rootCmd = &cobra.Command{
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Use: "ws-proxy",
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Short: "This acts as reverse-proxy for all workspace-bound requests",
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Args: cobra.MinimumNArgs(1),
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PersistentPreRun: func(cmd *cobra.Command, args []string) {
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log.Init(ServiceName, Version, jsonLog, jsonLog)
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},
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}
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// Execute adds all child commands to the root command and sets flags appropriately.
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// This is called by main.main(). It only needs to happen once to the rootCmd.
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func Execute() {
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closer := tracing.Init("ws-proxy")
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if closer != nil {
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defer closer.Close()
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}
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if err := rootCmd.Execute(); err != nil {
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fmt.Println(err)
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os.Exit(1)
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}
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}
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func init() {
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rootCmd.PersistentFlags().BoolVarP(&jsonLog, "json-log", "v", false, "produce JSON log output on verbose level")
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}
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// Config configures this servuce
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type Config struct {
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Ingress proxy.HostBasedIngressConfig `json:"ingress"`
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Proxy proxy.Config `json:"proxy"`
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WorkspaceInfoProviderConfig proxy.WorkspaceInfoProviderConfig `json:"workspaceInfoProviderConfig"`
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PProfAddr string `json:"pprofAddr"`
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PrometheusAddr string `json:"prometheusAddr"`
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ReadinessProbeAddr string `json:"readinessProbeAddr"`
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}
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// Validate validates the configuration to catch issues during startup and not at runtime
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func (c *Config) Validate() error {
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if err := c.Ingress.Validate(); err != nil {
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return err
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}
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if err := c.Proxy.Validate(); err != nil {
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return err
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}
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if err := c.WorkspaceInfoProviderConfig.Validate(); err != nil {
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return err
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}
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return nil
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}
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// getConfig loads and validates the configuration
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func getConfig(fn string) (*Config, error) {
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fc, err := os.ReadFile(fn)
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if err != nil {
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return nil, err
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}
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var cfg Config
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err = json.Unmarshal(fc, &cfg)
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if err != nil {
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return nil, err
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}
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err = cfg.Validate()
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if err != nil {
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return nil, xerrors.Errorf("config validation error: %w", err)
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}
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return &cfg, nil
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}
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