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-rw-r--r--pkg/specgen/generate/ports.go15
1 files changed, 8 insertions, 7 deletions
diff --git a/pkg/specgen/generate/ports.go b/pkg/specgen/generate/ports.go
index 1ad7e6f4d..7dd50ac0d 100644
--- a/pkg/specgen/generate/ports.go
+++ b/pkg/specgen/generate/ports.go
@@ -123,19 +123,20 @@ func parsePortMapping(portMappings []specgen.PortMapping) ([]ocicni.PortMapping,
postAssignHostPort = true
}
} else {
- testCPort := ctrPortMap[cPort]
- if testCPort != 0 && testCPort != hPort {
- // This is an attempt to redefine a port
- return nil, nil, nil, errors.Errorf("conflicting port mappings for container port %d (protocol %s)", cPort, p)
- }
- ctrPortMap[cPort] = hPort
-
testHPort := hostPortMap[hPort]
if testHPort != 0 && testHPort != cPort {
return nil, nil, nil, errors.Errorf("conflicting port mappings for host port %d (protocol %s)", hPort, p)
}
hostPortMap[hPort] = cPort
+ // Mapping a container port to multiple
+ // host ports is allowed.
+ // We only store the latest of these in
+ // the container port map - we don't
+ // need to know all of them, just one.
+ testCPort := ctrPortMap[cPort]
+ ctrPortMap[cPort] = hPort
+
// If we have an exact duplicate, just continue
if testCPort == hPort && testHPort == cPort {
continue