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fixed panic in network_policy_controller

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I have rebooted a newly created k3s etcd cluster and this panic was triggered:

    ```
    k3s[948]: [signal SIGSEGV: segmentation violation code=0x1 addr=0x18 pc=0x45f2945]
    k3s[948]: goroutine 1 [running]:
    k3s[948]: github.com/rancher/k3s/pkg/agent/netpol.NewNetworkPolicyController(0xc00159e180, 0x61b4a60, 0xc006294000, 0xdf8475800, 0xc011d9a360, 0xc, 0x0, 0xc00bf545b8, 0x2b2edbc)
    k3s[948]:         /home/x/git/k3s/pkg/agent/netpol/network_policy_controller.go:1698 +0x275
    ```

Signed-off-by: Matthias Schneider <ms@wck.biz>
This commit is contained in:
Matthias Schneider 2020-06-29 20:48:55 +02:00
parent af10a574f1
commit 56a083c812
1 changed files with 5 additions and 1 deletions
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6
pkg/agent/netpol/network_policy_controller.go
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@ -1693,7 +1693,11 @@ func NewNetworkPolicyController(
npc.syncPeriod = ipTablesSyncPeriod
npc.v1NetworkPolicy = true
v, _ := clientset.Discovery().ServerVersion()
v, err := clientset.Discovery().ServerVersion()
if err != nil {
return nil, err
}
valid := regexp.MustCompile("[0-9]")
v.Minor = strings.Join(valid.FindAllString(v.Minor, -1), "")
minorVer, _ := strconv.Atoi(v.Minor)