82 lines
3.3 KiB
Go
82 lines
3.3 KiB
Go
package main
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import (
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"fmt"
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"os"
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"strings"
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"github.com/docker/docker/pkg/mflag"
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. "github.com/weaveworks/weave/common"
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"github.com/weaveworks/weave/common/mflagext"
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"github.com/weaveworks/weave/proxy"
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)
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var (
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version = "(unreleased version)"
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defaultDockerHost = "unix:///var/run/docker.sock"
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)
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func main() {
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var (
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justVersion bool
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logLevel = "info"
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c = proxy.Config{Image: "weaveworks/weaveexec"}
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withDNS bool
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)
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c.Version = version
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mflag.BoolVar(&justVersion, []string{"#version", "-version"}, false, "print version and exit")
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mflag.StringVar(&logLevel, []string{"-log-level"}, "info", "logging level (debug, info, warning, error)")
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mflagext.ListVar(&c.ListenAddrs, []string{"H"}, nil, "addresses on which to listen")
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mflag.StringVar(&c.HostnameFromLabel, []string{"-hostname-from-label"}, "", "Key of container label from which to obtain the container's hostname")
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mflag.StringVar(&c.HostnameMatch, []string{"-hostname-match"}, "(.*)", "Regexp pattern to apply on container names (e.g. '^aws-[0-9]+-(.*)$')")
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mflag.StringVar(&c.HostnameReplacement, []string{"-hostname-replacement"}, "$1", "Expression to generate hostnames based on matches from --hostname-match (e.g. 'my-app-$1')")
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mflag.BoolVar(&c.RewriteInspect, []string{"-rewrite-inspect"}, false, "Rewrite 'inspect' calls to return the weave network settings (if attached)")
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mflag.BoolVar(&c.NoDefaultIPAM, []string{"#-no-default-ipam", "-no-default-ipalloc"}, false, "do not automatically allocate addresses for containers without a WEAVE_CIDR")
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mflag.BoolVar(&c.NoRewriteHosts, []string{"-no-rewrite-hosts"}, false, "do not automatically rewrite /etc/hosts. Use if you need the docker IP to remain in /etc/hosts")
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mflag.StringVar(&c.TLSConfig.CACert, []string{"#tlscacert", "-tlscacert"}, "", "Trust certs signed only by this CA")
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mflag.StringVar(&c.TLSConfig.Cert, []string{"#tlscert", "-tlscert"}, "", "Path to TLS certificate file")
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mflag.BoolVar(&c.TLSConfig.Enabled, []string{"#tls", "-tls"}, false, "Use TLS; implied by --tlsverify")
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mflag.StringVar(&c.TLSConfig.Key, []string{"#tlskey", "-tlskey"}, "", "Path to TLS key file")
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mflag.BoolVar(&c.TLSConfig.Verify, []string{"#tlsverify", "-tlsverify"}, false, "Use TLS and verify the remote")
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mflag.BoolVar(&withDNS, []string{"#-with-dns", "#w"}, false, "option removed")
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mflag.BoolVar(&c.WithoutDNS, []string{"-without-dns"}, false, "instruct created containers to never use weaveDNS as their nameserver")
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mflag.BoolVar(&c.NoMulticastRoute, []string{"-no-multicast-route"}, false, "do not add a multicast route via the weave interface when attaching containers")
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mflag.Parse()
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if justVersion {
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fmt.Printf("weave proxy %s\n", version)
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os.Exit(0)
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}
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SetLogLevel(logLevel)
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if image := os.Getenv("EXEC_IMAGE"); image != "" {
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c.Image = image
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}
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Log.Infoln("weave proxy", version)
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Log.Infoln("Command line arguments:", strings.Join(os.Args[1:], " "))
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if withDNS {
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Log.Warning("--with-dns option has been removed; DNS is on by default")
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}
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c.DockerHost = defaultDockerHost
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if dockerHost := os.Getenv("DOCKER_HOST"); dockerHost != "" {
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c.DockerHost = dockerHost
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}
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p, err := proxy.NewProxy(c)
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if err != nil {
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Log.Fatalf("Could not start proxy: %s", err)
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}
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listeners := p.Listen()
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p.AttachExistingContainers()
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go p.Serve(listeners)
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go p.ListenAndServeStatus("/home/weave/status.sock")
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SignalHandlerLoop()
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}
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