forked from coop-cloud/abra
fix: attempt to include IdentityFile if available
This is part of trying to debug: coop-cloud/organising#250 And also part of: coop-cloud/docs.coopcloud.tech#27 Where I now try to specify the same logic as `ssh -i <my-key-path>` in the underlying connection logic. This should help with being more explicit about what key is being used via the SSH config file.
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parent
56c3e070f5
commit
e589709cb0
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@ -563,11 +563,16 @@ func GetHostConfig(hostname, username, port string) (HostConfig, error) {
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}
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idf = ssh_config.Get(hostname, "IdentityFile")
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hostConfig.Host = host
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if idf != "" {
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var err error
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idf, err = identityFileAbsPath(idf)
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if err != nil {
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return hostConfig, err
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}
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hostConfig.IdentityFile = idf
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}
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hostConfig.Host = host
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hostConfig.Port = port
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hostConfig.User = username
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@ -575,3 +580,25 @@ func GetHostConfig(hostname, username, port string) (HostConfig, error) {
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return hostConfig, nil
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}
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func identityFileAbsPath(relPath string) (string, error) {
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var err error
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var absPath string
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if strings.HasPrefix(relPath, "~/") {
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systemUser, err := user.Current()
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if err != nil {
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return absPath, err
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}
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absPath = filepath.Join(systemUser.HomeDir, relPath[2:])
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} else {
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absPath, err = filepath.Abs(relPath)
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if err != nil {
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return absPath, err
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}
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}
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logrus.Debugf("resolved %s to %s to read the ssh identity file", relPath, absPath)
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return absPath, nil
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}
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@ -2,6 +2,7 @@ package commandconn
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import (
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"context"
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"fmt"
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"net"
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"net/url"
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@ -34,9 +35,25 @@ func getConnectionHelper(daemonURL string, sshFlags []string) (*connhelper.Conne
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if err != nil {
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return nil, errors.Wrap(err, "ssh host connection is not valid")
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}
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if err := sshPkg.EnsureHostKey(ctxConnDetails.Host); err != nil {
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return nil, err
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}
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hostConfig, err := sshPkg.GetHostConfig(
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ctxConnDetails.Host,
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ctxConnDetails.User,
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ctxConnDetails.Port,
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)
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if err != nil {
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return nil, err
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}
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if hostConfig.IdentityFile != "" {
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msg := "discovered %s as identity file for %s, using for ssh connection"
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logrus.Debugf(msg, hostConfig.IdentityFile, ctxConnDetails.Host)
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sshFlags = append(sshFlags, fmt.Sprintf("-o IdentityFile=%s", hostConfig.IdentityFile))
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}
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return &connhelper.ConnectionHelper{
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Dialer: func(ctx context.Context, network, addr string) (net.Conn, error) {
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return New(ctx, "ssh", append(sshFlags, ctxConnDetails.Args("docker", "system", "dial-stdio")...)...)
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