Merge pull request #3792 from haircommander/minimum-conmon

require conmon v2.0.1

1 files changed, 38 insertions, 7 deletions

diff --git a/libpod/runtime.go b/libpod/runtime.go
index a06b2bb51..0405a9b85 100644
--- a/libpod/runtime.go
+++ b/libpod/runtime.go
@@ -84,6 +84,15 @@ var (
 	// DefaultDetachKeys is the default keys sequence for detaching a
 	// container
 	DefaultDetachKeys = "ctrl-p,ctrl-q"
+
+	// minConmonMajor is the major version required for conmon
+	minConmonMajor = 2
+
+	// minConmonMinor is the minor version required for conmon
+	minConmonMinor = 0
+
+	// minConmonPatch is the sub-minor version required for conmon
+	minConmonPatch = 1
 )
 
 // A RuntimeOption is a functional option which alters the Runtime created by
@@ -788,6 +797,7 @@ func getLockManager(runtime *Runtime) (lock.Manager, error) {
 // probeConmon calls conmon --version and verifies it is a new enough version for
 // the runtime expectations podman currently has
 func probeConmon(conmonBinary string) error {
+	versionFormatErr := "conmon version changed format"
 	cmd := exec.Command(conmonBinary, "--version")
 	var out bytes.Buffer
 	cmd.Stdout = &out
@@ -799,19 +809,40 @@ func probeConmon(conmonBinary string) error {
 
 	matches := r.FindStringSubmatch(out.String())
 	if len(matches) != 4 {
-		return errors.Wrapf(err, "conmon version changed format")
+		return errors.Wrapf(err, versionFormatErr)
 	}
 	major, err := strconv.Atoi(matches[1])
-	if err != nil || major < 1 {
+	if err != nil {
+		return errors.Wrapf(err, versionFormatErr)
+	}
+	if major < minConmonMajor {
 		return define.ErrConmonOutdated
 	}
-	// conmon used to be shipped with CRI-O, and was versioned along with it.
-	// even though the conmon that came with crio-1.9 to crio-1.15 has a higher
-	// version number than conmon 1.0.0, 1.0.0 is newer, so we need this check
+	if major > minConmonMajor {
+		return nil
+	}
+
 	minor, err := strconv.Atoi(matches[2])
-	if err != nil || minor > 9 {
+	if err != nil {
+		return errors.Wrapf(err, versionFormatErr)
+	}
+	if minor < minConmonMinor {
 		return define.ErrConmonOutdated
 	}
+	if minor > minConmonMinor {
+		return nil
+	}
+
+	patch, err := strconv.Atoi(matches[3])
+	if err != nil {
+		return errors.Wrapf(err, versionFormatErr)
+	}
+	if patch < minConmonPatch {
+		return define.ErrConmonOutdated
+	}
+	if patch > minConmonPatch {
+		return nil
+	}
 
 	return nil
 }
@@ -871,7 +902,7 @@ func makeRuntime(ctx context.Context, runtime *Runtime) (err error) {
 
 	if !foundConmon {
 		if foundOutdatedConmon {
-			return errors.Wrapf(define.ErrConmonOutdated, "please update to v1.0.0 or later")
+			return errors.Errorf("please update to v%d.%d.%d or later: %v", minConmonMajor, minConmonMinor, minConmonPatch, define.ErrConmonOutdated)
 		}
 		return errors.Wrapf(define.ErrInvalidArg,
 			"could not find a working conmon binary (configured options: %v)",