|
| 1 | +package playbook |
| 2 | + |
| 3 | +import ( |
| 4 | + "fmt" |
| 5 | + "io/ioutil" |
| 6 | + "os" |
| 7 | + "os/user" |
| 8 | + "path/filepath" |
| 9 | + |
| 10 | + "github.com/docker/infrakit/cmd/cli/base" |
| 11 | + "github.com/docker/infrakit/pkg/cli/remote" |
| 12 | + "github.com/docker/infrakit/pkg/discovery" |
| 13 | + logutil "github.com/docker/infrakit/pkg/log" |
| 14 | + "github.com/docker/infrakit/pkg/template" |
| 15 | + "github.com/spf13/cobra" |
| 16 | +) |
| 17 | + |
| 18 | +var log = logutil.New("module", "cli/playbook") |
| 19 | + |
| 20 | +const ( |
| 21 | + // PlaybooksFileEnvVar is the location of the playbooks file |
| 22 | + PlaybooksFileEnvVar = "INFRAKIT_PLAYBOOKS_FILE" |
| 23 | +) |
| 24 | + |
| 25 | +func init() { |
| 26 | + base.Register(Command) |
| 27 | +} |
| 28 | + |
| 29 | +func getHome() string { |
| 30 | + if usr, err := user.Current(); err == nil { |
| 31 | + return usr.HomeDir |
| 32 | + } |
| 33 | + return os.Getenv("HOME") |
| 34 | +} |
| 35 | + |
| 36 | +func defaultPlaybooksFile() string { |
| 37 | + if playbooksFile := os.Getenv(PlaybooksFileEnvVar); playbooksFile != "" { |
| 38 | + return playbooksFile |
| 39 | + } |
| 40 | + return filepath.Join(getHome(), ".infrakit/playbooks") |
| 41 | +} |
| 42 | + |
| 43 | +// Load loads the playbook |
| 44 | +func Load() (remote.Modules, error) { |
| 45 | + return loadPlaybooks() |
| 46 | +} |
| 47 | + |
| 48 | +func loadPlaybooks() (remote.Modules, error) { |
| 49 | + modules := remote.Modules{} |
| 50 | + buff, err := ioutil.ReadFile(defaultPlaybooksFile()) |
| 51 | + if err != nil { |
| 52 | + if !os.IsExist(err) { |
| 53 | + return modules, nil |
| 54 | + } |
| 55 | + return nil, err |
| 56 | + } |
| 57 | + |
| 58 | + if len(buff) > 0 { |
| 59 | + err = remote.Decode(buff, &modules) |
| 60 | + } |
| 61 | + return modules, err |
| 62 | +} |
| 63 | + |
| 64 | +// Command is the entrypoint |
| 65 | +func Command(plugins func() discovery.Plugins) *cobra.Command { |
| 66 | + |
| 67 | + /////////////////////////////////////////////////////////////////////////////////// |
| 68 | + // playbook |
| 69 | + cmd := &cobra.Command{ |
| 70 | + Use: "playbook", |
| 71 | + Short: "Manage playbooks", |
| 72 | + } |
| 73 | + quiet := cmd.PersistentFlags().BoolP("quiet", "q", false, "Print rows without column headers") |
| 74 | + |
| 75 | + add := &cobra.Command{ |
| 76 | + Use: "add <name> <url>", |
| 77 | + Short: "Add a playbook", |
| 78 | + RunE: func(cmd *cobra.Command, args []string) error { |
| 79 | + |
| 80 | + if len(args) != 2 { |
| 81 | + cmd.Usage() |
| 82 | + os.Exit(1) |
| 83 | + } |
| 84 | + |
| 85 | + name := args[0] |
| 86 | + url := args[1] |
| 87 | + |
| 88 | + modules, err := loadPlaybooks() |
| 89 | + if err != nil { |
| 90 | + return err |
| 91 | + } |
| 92 | + |
| 93 | + // try fetch |
| 94 | + test, err := template.NewTemplate(url, template.Options{}) |
| 95 | + if err != nil { |
| 96 | + return err |
| 97 | + } |
| 98 | + |
| 99 | + _, err = test.Render(nil) |
| 100 | + if err != nil { |
| 101 | + return err |
| 102 | + } |
| 103 | + |
| 104 | + if _, has := modules[remote.Op(name)]; has { |
| 105 | + return fmt.Errorf("%s already exists", name) |
| 106 | + } |
| 107 | + |
| 108 | + modules[remote.Op(name)] = remote.SourceURL(url) |
| 109 | + |
| 110 | + encoded, err := remote.Encode(modules) |
| 111 | + if err != nil { |
| 112 | + return err |
| 113 | + } |
| 114 | + |
| 115 | + return ioutil.WriteFile(defaultPlaybooksFile(), encoded, 0755) |
| 116 | + }, |
| 117 | + } |
| 118 | + remove := &cobra.Command{ |
| 119 | + Use: "rm <name>", |
| 120 | + Short: "Remove a playbook", |
| 121 | + RunE: func(cmd *cobra.Command, args []string) error { |
| 122 | + |
| 123 | + if len(args) != 1 { |
| 124 | + cmd.Usage() |
| 125 | + os.Exit(1) |
| 126 | + } |
| 127 | + |
| 128 | + name := args[0] |
| 129 | + |
| 130 | + modules, err := loadPlaybooks() |
| 131 | + if err != nil { |
| 132 | + return err |
| 133 | + } |
| 134 | + |
| 135 | + if _, has := modules[remote.Op(name)]; !has { |
| 136 | + return fmt.Errorf("%s does not exists", name) |
| 137 | + } |
| 138 | + |
| 139 | + delete(modules, remote.Op(name)) |
| 140 | + |
| 141 | + encoded, err := remote.Encode(modules) |
| 142 | + if err != nil { |
| 143 | + return err |
| 144 | + } |
| 145 | + |
| 146 | + return ioutil.WriteFile(defaultPlaybooksFile(), encoded, 0755) |
| 147 | + }, |
| 148 | + } |
| 149 | + |
| 150 | + rawOutputFlags, rawOutput := base.RawOutput() |
| 151 | + list := &cobra.Command{ |
| 152 | + Use: "ls", |
| 153 | + Short: "List playbooks", |
| 154 | + RunE: func(cmd *cobra.Command, args []string) error { |
| 155 | + |
| 156 | + if len(args) != 0 { |
| 157 | + cmd.Usage() |
| 158 | + os.Exit(1) |
| 159 | + } |
| 160 | + |
| 161 | + modules, err := loadPlaybooks() |
| 162 | + if err != nil { |
| 163 | + fmt.Println("***") |
| 164 | + return err |
| 165 | + } |
| 166 | + rendered, err := rawOutput(os.Stdout, modules) |
| 167 | + if err != nil { |
| 168 | + return err |
| 169 | + } |
| 170 | + if rendered { |
| 171 | + return nil |
| 172 | + } |
| 173 | + |
| 174 | + if !*quiet { |
| 175 | + fmt.Printf("%-30s\t%-30s\n", "PLAYBOOK", "URL") |
| 176 | + } |
| 177 | + |
| 178 | + for op, url := range modules { |
| 179 | + fmt.Printf("%-30v\t%-30v\n", op, url) |
| 180 | + } |
| 181 | + return nil |
| 182 | + }, |
| 183 | + } |
| 184 | + list.Flags().AddFlagSet(rawOutputFlags) |
| 185 | + |
| 186 | + cmd.AddCommand(add, remove, list) |
| 187 | + |
| 188 | + return cmd |
| 189 | +} |
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