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Redact the swarm's spec's signing CA cert when getting swarm info, because

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otherwise if the user gets the info from the API, makes a non-CA related change,
then updates, swarm will interpret this as the user trying to remove the signing
key from the swarm.  We are redacting due to usability reasons, not because
the signing cert is secret.  The signing KEY is secret, hence it's redacted.

Signed-off-by: Ying Li <ying.li@docker.com>
This commit is contained in:
Ying Li 2017-06-15 18:11:14 -07:00
parent b931c35a46
commit bdfbd22afb
2 changed files with 9 additions and 7 deletions
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7
daemon/cluster/convert/swarm.go
View file

@ -31,9 +31,10 @@ func SwarmFromGRPC(c swarmapi.Cluster) types.Swarm {
AutoLockManagers: c.Spec.EncryptionConfig.AutoLockManagers,
},
CAConfig: types.CAConfig{
// do not include the signing CA key (it should already be redacted via the swarm APIs)
SigningCACert: string(c.Spec.CAConfig.SigningCACert),
ForceRotate: c.Spec.CAConfig.ForceRotate,
// do not include the signing CA cert or key (it should already be redacted via the swarm APIs) -
// the key because it's secret, and the cert because otherwise doing a get + update on the spec
// can cause issues because the key would be missing and the cert wouldn't
ForceRotate: c.Spec.CAConfig.ForceRotate,
},
},
TLSInfo: types.TLSInfo{

9
integration-cli/docker_api_swarm_test.go
View file

@ -967,20 +967,21 @@ func (s *DockerSwarmSuite) TestSwarmRepeatedRootRotation(c *check.C) {
for j := 0; j < 18; j++ {
info, err := m.SwarmInfo()
c.Assert(err, checker.IsNil)
c.Assert(info.Cluster.Spec.CAConfig.SigningCACert, checker.Equals, expectedCert)
// the desired CA key is always redacted
// the desired CA cert and key is always redacted
c.Assert(info.Cluster.Spec.CAConfig.SigningCAKey, checker.Equals, "")
c.Assert(info.Cluster.Spec.CAConfig.SigningCACert, checker.Equals, "")
clusterTLSInfo = info.Cluster.TLSInfo
if !info.Cluster.RootRotationInProgress {
// if root rotation is done and the trust root has changed, we don't have to poll anymore
if !info.Cluster.RootRotationInProgress && clusterTLSInfo.TrustRoot != currentTrustRoot {
break
}
// root rotation not done
time.Sleep(250 * time.Millisecond)
}
c.Assert(clusterTLSInfo.TrustRoot, checker.Not(checker.Equals), currentTrustRoot)
if cert != nil {
c.Assert(clusterTLSInfo.TrustRoot, checker.Equals, expectedCert)
}