72a515f5ec
Highlights: - add new endpoint to query for intentions by exact match - using this endpoint from the CLI instead of the dump+filter approach - enforcing that OSS can only read/write intentions with a SourceNS or DestinationNS field of "default". - preexisting OSS intentions with now-invalid namespace fields will delete those intentions on initial election or for wildcard namespaces an attempt will be made to downgrade them to "default" unless one exists. - also allow the '-namespace' CLI arg on all of the intention subcommands - update lots of docs
114 lines
2.5 KiB
Go
114 lines
2.5 KiB
Go
package get
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import (
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"flag"
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"fmt"
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"io"
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"sort"
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"time"
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"github.com/hashicorp/consul/command/flags"
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"github.com/hashicorp/consul/command/intention/finder"
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"github.com/mitchellh/cli"
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"github.com/ryanuber/columnize"
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)
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func New(ui cli.Ui) *cmd {
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c := &cmd{UI: ui}
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c.init()
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return c
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}
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type cmd struct {
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UI cli.Ui
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flags *flag.FlagSet
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http *flags.HTTPFlags
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help string
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// testStdin is the input for testing.
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testStdin io.Reader
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}
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func (c *cmd) init() {
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c.flags = flag.NewFlagSet("", flag.ContinueOnError)
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c.http = &flags.HTTPFlags{}
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flags.Merge(c.flags, c.http.ClientFlags())
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flags.Merge(c.flags, c.http.ServerFlags())
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flags.Merge(c.flags, c.http.NamespaceFlags())
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c.help = flags.Usage(help, c.flags)
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}
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func (c *cmd) Run(args []string) int {
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if err := c.flags.Parse(args); err != nil {
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return 1
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}
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// Create and test the HTTP client
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client, err := c.http.APIClient()
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if err != nil {
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c.UI.Error(fmt.Sprintf("Error connecting to Consul agent: %s", err))
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return 1
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}
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// Get the intention ID to load
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id, err := finder.IDFromArgs(client, c.flags.Args())
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if err != nil {
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c.UI.Error(fmt.Sprintf("Error: %s", err))
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return 1
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}
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// Read the intention
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ixn, _, err := client.Connect().IntentionGet(id, nil)
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if err != nil {
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c.UI.Error(fmt.Sprintf("Error reading the intention: %s", err))
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return 1
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}
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// Format the tabular data
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data := []string{
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fmt.Sprintf("Source:\x1f%s", ixn.SourceString()),
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fmt.Sprintf("Destination:\x1f%s", ixn.DestinationString()),
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fmt.Sprintf("Action:\x1f%s", ixn.Action),
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fmt.Sprintf("ID:\x1f%s", ixn.ID),
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}
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if v := ixn.Description; v != "" {
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data = append(data, fmt.Sprintf("Description:\x1f%s", v))
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}
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if len(ixn.Meta) > 0 {
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var keys []string
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for k := range ixn.Meta {
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keys = append(keys, k)
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}
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sort.Strings(keys)
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for _, k := range keys {
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data = append(data, fmt.Sprintf("Meta[%s]:\x1f%s", k, ixn.Meta[k]))
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}
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}
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data = append(data,
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fmt.Sprintf("Created At:\x1f%s", ixn.CreatedAt.Local().Format(time.RFC850)),
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)
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c.UI.Output(columnize.Format(data, &columnize.Config{Delim: string([]byte{0x1f})}))
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return 0
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}
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func (c *cmd) Synopsis() string {
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return synopsis
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}
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func (c *cmd) Help() string {
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return c.help
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}
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const synopsis = "Show information about an intention."
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const help = `
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Usage: consul intention get [options] SRC DST
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Usage: consul intention get [options] ID
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Read and show the details about an intention. The intention can be looked
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up via an exact source/destination match or via the unique intention ID.
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$ consul intention get web db
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`
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