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Implement docker info with standalone client lib.

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Signed-off-by: David Calavera <david.calavera@gmail.com>
This commit is contained in:
David Calavera 2015-12-03 17:20:46 -05:00
parent 6bf757500b
commit 900ad2897f
2 changed files with 56 additions and 43 deletions
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74
api/client/info.go
View file

@ -1,12 +1,9 @@
package client
import (
"encoding/json"
"fmt"
"github.com/docker/docker/api/types"
Cli "github.com/docker/docker/cli"
"github.com/docker/docker/pkg/httputils"
"github.com/docker/docker/pkg/ioutils"
flag "github.com/docker/docker/pkg/mflag"
"github.com/docker/docker/pkg/units"
@ -21,18 +18,11 @@ func (cli *DockerCli) CmdInfo(args ...string) error {
cmd.ParseFlags(args, true)
serverResp, err := cli.call("GET", "/info", nil, nil)
info, err := cli.client.Info()
if err != nil {
return err
}
defer serverResp.body.Close()
info := &types.Info{}
if err := json.NewDecoder(serverResp.body).Decode(info); err != nil {
return fmt.Errorf("Error reading remote info: %v", err)
}
fmt.Fprintf(cli.out, "Containers: %d\n", info.Containers)
fmt.Fprintf(cli.out, "Images: %d\n", info.Images)
ioutils.FprintfIfNotEmpty(cli.out, "Server Version: %s\n", info.ServerVersion)
@ -90,38 +80,36 @@ func (cli *DockerCli) CmdInfo(args ...string) error {
}
// Only output these warnings if the server does not support these features
if h, err := httputils.ParseServerHeader(serverResp.header.Get("Server")); err == nil {
if h.OS != "windows" {
if !info.MemoryLimit {
fmt.Fprintf(cli.err, "WARNING: No memory limit support\n")
}
if !info.SwapLimit {
fmt.Fprintf(cli.err, "WARNING: No swap limit support\n")
}
if !info.OomKillDisable {
fmt.Fprintf(cli.err, "WARNING: No oom kill disable support\n")
}
if !info.CPUCfsQuota {
fmt.Fprintf(cli.err, "WARNING: No cpu cfs quota support\n")
}
if !info.CPUCfsPeriod {
fmt.Fprintf(cli.err, "WARNING: No cpu cfs period support\n")
}
if !info.CPUShares {
fmt.Fprintf(cli.err, "WARNING: No cpu shares support\n")
}
if !info.CPUSet {
fmt.Fprintf(cli.err, "WARNING: No cpuset support\n")
}
if !info.IPv4Forwarding {
fmt.Fprintf(cli.err, "WARNING: IPv4 forwarding is disabled\n")
}
if !info.BridgeNfIptables {
fmt.Fprintf(cli.err, "WARNING: bridge-nf-call-iptables is disabled\n")
}
if !info.BridgeNfIP6tables {
fmt.Fprintf(cli.err, "WARNING: bridge-nf-call-ip6tables is disabled\n")
}
if info.OSType != "windows" {
if !info.MemoryLimit {
fmt.Fprintf(cli.err, "WARNING: No memory limit support\n")
}
if !info.SwapLimit {
fmt.Fprintf(cli.err, "WARNING: No swap limit support\n")
}
if !info.OomKillDisable {
fmt.Fprintf(cli.err, "WARNING: No oom kill disable support\n")
}
if !info.CPUCfsQuota {
fmt.Fprintf(cli.err, "WARNING: No cpu cfs quota support\n")
}
if !info.CPUCfsPeriod {
fmt.Fprintf(cli.err, "WARNING: No cpu cfs period support\n")
}
if !info.CPUShares {
fmt.Fprintf(cli.err, "WARNING: No cpu shares support\n")
}
if !info.CPUSet {
fmt.Fprintf(cli.err, "WARNING: No cpuset support\n")
}
if !info.IPv4Forwarding {
fmt.Fprintf(cli.err, "WARNING: IPv4 forwarding is disabled\n")
}
if !info.BridgeNfIptables {
fmt.Fprintf(cli.err, "WARNING: bridge-nf-call-iptables is disabled\n")
}
if !info.BridgeNfIP6tables {
fmt.Fprintf(cli.err, "WARNING: bridge-nf-call-ip6tables is disabled\n")
}
}

25
api/client/lib/info.go Normal file
View file

@ -0,0 +1,25 @@
package lib
import (
"encoding/json"
"fmt"
"net/url"
"github.com/docker/docker/api/types"
)
// Info returns information about the docker server.
func (cli *Client) Info() (types.Info, error) {
var info types.Info
serverResp, err := cli.GET("/info", url.Values{}, nil)
if err != nil {
return info, err
}
defer serverResp.body.Close()
if err := json.NewDecoder(serverResp.body).Decode(&info); err != nil {
return info, fmt.Errorf("Error reading remote info: %v", err)
}
return info, nil
}