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Remove any host keys generated during build #67

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Remove any host keys generated during build #67

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7 changes: 7 additions & 0 deletions pkg/stages/stages.go
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Original file line number Diff line number Diff line change
Expand Up @@ -441,6 +441,13 @@ func GetCleanupStage(sis values.System, l types.KairosLogger) []schema.Stage {
"truncate -s 0 /etc/hostname",
},
},
{
Name: "Remove host ssh keys",
If: "test -d /etc/ssh",
Commands: []string{
"rm -f /etc/ssh/ssh_host_*_key*",
},
},
}

var pkgs []values.VersionMap
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13 changes: 13 additions & 0 deletions pkg/validation/validate.go
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Expand Up @@ -10,6 +10,7 @@ import (
"github.com/kairos-io/kairos-sdk/types"
"os"
"os/exec"
"path/filepath"
"strings"
)

Expand Down Expand Up @@ -189,5 +190,17 @@ func (v *Validator) Validate() error {
}
}

// Check if there are any ssh host keys in /etc/ssh
matches, err := filepath.Glob("/etc/ssh/ssh_host_*_key")
if err != nil {
multi = multierror.Append(multi, fmt.Errorf("error checking for SSH host keys: %s", err))
}
if len(matches) > 0 {
v.Log.Logger.Warn().Strs("ssh_host_keys", matches).Msg("Found SSH host keys in the system")
multi = multierror.Append(multi, fmt.Errorf("found SSH host keys in the system: %v", matches))
} else {
v.Log.Logger.Info().Msg("No SSH host keys found bundled in the system")
}

return multi.ErrorOrNil()
}