Martynas Pumputis
0ff37d3492
We cannot do it from weaveexec, because the latter is distributed with an old version of Docker client which does not support Plugins API.
103 lines
2.6 KiB
Go
103 lines
2.6 KiB
Go
/* weaveutil: collection of operations required by weave script */
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package main
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import (
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"fmt"
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"os"
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"path/filepath"
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"strings"
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weavenet "github.com/weaveworks/weave/net"
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)
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var commands map[string]func([]string) error
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func init() {
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commands = map[string]func([]string) error{
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"help": help,
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"netcheck": netcheck,
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"docker-tls-args": dockerTLSArgs,
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"create-datapath": createDatapath,
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"delete-datapath": deleteDatapath,
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"check-datapath": checkDatapath,
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"add-datapath-interface": addDatapathInterface,
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"create-plugin-network": createPluginNetwork,
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"remove-plugin-network": removePluginNetwork,
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"container-addrs": containerAddrs,
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"process-addrs": processAddrs,
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"attach-container": attach,
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"detach-container": detach,
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"configure-arp": configureARP,
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"check-iface": checkIface,
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"del-iface": delIface,
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"setup-iface": setupIface,
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"list-netdevs": listNetDevs,
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"cni-net": cniNet,
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"cni-ipam": cniIPAM,
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"expose-nat": exposeNAT,
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"bridge-ip": bridgeIP,
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"unique-id": uniqueID,
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"swarm-manager-peers": swarmManagerPeers,
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"is-swarm-manager": isSwarmManager,
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"is-docker-plugin-enabled": isDockerPluginEnabled,
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}
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}
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func main() {
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// force re-exec of this binary
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selfPath, err := filepath.EvalSymlinks("/proc/self/exe")
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if err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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weavenet.WeaveUtilCmd = selfPath
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// If no args passed, act as CNI plugin based on executable name
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switch {
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case len(os.Args) == 1 && strings.HasSuffix(os.Args[0], "weave-ipam"):
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cniIPAM(os.Args)
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os.Exit(0)
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case len(os.Args) == 1 && strings.HasSuffix(os.Args[0], "weave-net"):
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cniNet(os.Args)
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os.Exit(0)
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}
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if len(os.Args) < 2 {
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usage()
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os.Exit(1)
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}
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cmd, found := commands[os.Args[1]]
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if !found {
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fmt.Fprintf(os.Stderr, "%q cmd is not found\n", os.Args[1])
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usage()
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os.Exit(1)
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}
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if err := cmd(os.Args[2:]); err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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}
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func help(args []string) error {
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if len(args) > 0 {
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cmdUsage("help", "")
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}
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usage()
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return nil
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}
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func usage() {
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fmt.Fprintln(os.Stderr, "usage: weaveutil <command> <arg>...")
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fmt.Fprintln(os.Stderr)
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fmt.Fprintln(os.Stderr, "where <command> is one of:")
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fmt.Fprintln(os.Stderr)
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for cmd := range commands {
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fmt.Fprintln(os.Stderr, cmd)
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}
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}
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func cmdUsage(cmd string, usage string) {
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fmt.Fprintf(os.Stderr, "usage: weaveutil %s %s\n", cmd, usage)
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os.Exit(1)
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}
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