2021-09-04 22:41:31 +00:00
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// Package client provides Docker client initiatialisation functions.
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2021-07-16 08:32:20 +00:00
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package client
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import (
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2023-01-31 15:09:09 +00:00
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"context"
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"errors"
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"fmt"
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2021-07-16 08:32:20 +00:00
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"net/http"
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"os"
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2021-10-18 08:48:43 +00:00
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"time"
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2021-07-16 08:32:20 +00:00
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2021-11-08 14:37:23 +00:00
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contextPkg "coopcloud.tech/abra/pkg/context"
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2023-01-31 15:09:09 +00:00
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sshPkg "coopcloud.tech/abra/pkg/ssh"
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2021-11-02 14:49:11 +00:00
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commandconnPkg "coopcloud.tech/abra/pkg/upstream/commandconn"
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2021-07-22 14:31:39 +00:00
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"github.com/docker/docker/client"
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2021-07-21 08:04:34 +00:00
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"github.com/sirupsen/logrus"
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2021-07-16 08:32:20 +00:00
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)
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2023-01-31 15:09:09 +00:00
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// New initiates a new Docker client. New client connections are validated so
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// that we ensure connections via SSH to the daemon can succeed. It takes into
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// account that you may only want the local client and not communicate via SSH.
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// For this use-case, please pass "default" as the contextName.
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func New(serverName string) (*client.Client, error) {
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var clientOpts []client.Opt
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2023-01-31 15:09:09 +00:00
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if serverName != "default" {
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context, err := GetContext(serverName)
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2021-10-17 21:50:44 +00:00
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if err != nil {
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2023-02-11 22:48:33 +00:00
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return nil, fmt.Errorf("unknown server, run \"abra serever add %s\"?", serverName)
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}
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2021-11-08 14:37:23 +00:00
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ctxEndpoint, err := contextPkg.GetContextEndpoint(context)
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if err != nil {
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return nil, err
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}
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2022-02-03 12:43:11 +00:00
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helper, err := commandconnPkg.NewConnectionHelper(ctxEndpoint)
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if err != nil {
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return nil, err
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}
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2021-10-17 21:50:44 +00:00
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httpClient := &http.Client{
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Transport: &http.Transport{
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2021-11-02 14:49:11 +00:00
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DialContext: helper.Dialer,
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IdleConnTimeout: 30 * time.Second,
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},
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}
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clientOpts = append(clientOpts,
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client.WithHTTPClient(httpClient),
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client.WithHost(helper.Host),
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client.WithDialContext(helper.Dialer),
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)
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2021-07-16 08:32:20 +00:00
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}
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version := os.Getenv("DOCKER_API_VERSION")
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if version != "" {
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clientOpts = append(clientOpts, client.WithVersion(version))
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} else {
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clientOpts = append(clientOpts, client.WithAPIVersionNegotiation())
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}
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2021-07-22 14:31:39 +00:00
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cl, err := client.NewClientWithOpts(clientOpts...)
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2021-07-16 08:32:20 +00:00
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if err != nil {
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return nil, err
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2021-07-16 08:32:20 +00:00
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}
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2021-09-04 22:41:31 +00:00
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2023-01-31 15:09:09 +00:00
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logrus.Debugf("created client for %s", serverName)
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info, err := cl.Info(context.Background())
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if err != nil {
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return cl, sshPkg.Fatal(serverName, err)
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}
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if info.Swarm.LocalNodeState == "inactive" {
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if serverName != "default" {
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return cl, fmt.Errorf("swarm mode not enabled on %s?", serverName)
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} else {
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return cl, errors.New("swarm mode not enabled on local server?")
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}
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}
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2021-09-10 22:54:02 +00:00
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2021-07-22 08:51:27 +00:00
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return cl, nil
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}
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