[Touch-packages] [Bug 1908898] Re: systemd-resolved service reach start-limit-hit if dhcp is not reachable

2021-01-19 Thread Jacopo Secchiero
this is probably caused from a human error, someone have started
dhclient manually. I'm closing this, sorry for the noise

** Changed in: systemd (Ubuntu)
   Status: New => Invalid

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https://bugs.launchpad.net/bugs/1908898

Title:
  systemd-resolved service reach start-limit-hit if dhcp is not
  reachable

Status in systemd package in Ubuntu:
  Invalid

Bug description:
  Hi there,
  i have found my kubernetes worker in "NotReady" state with message "PLEG is 
not healthy: pleg was last seen active" because dns resolution was not 
available anymore because "systemd-resolved" service was not able to restart 
after finding that there is not a DHCP server available. The "systemd-resolved" 
service remain in fail state "start-limit-hit".

  ubuntu version: "Ubuntu 18.04.5 LTS"
  systemd version: "237-3ubuntu10.42"

  Dec 18 16:33:26 mykubeworker dhclient[3963]: No DHCPOFFERS received.
  Dec 18 16:33:26 mykubeworker dhclient[3963]: No working leases in persistent 
database - sleeping.
  Dec 18 16:33:26 mykubeworker systemd[1]: Stopping Network Name Resolution...
  Dec 18 16:33:26 mykubeworker systemd[1]: Stopped Network Name Resolution.
  Dec 18 16:33:26 mykubeworker systemd[1]: Starting Network Name Resolution...
  Dec 18 16:33:27 mykubeworker systemd-resolved[12446]: Positive Trust Anchors:
  Dec 18 16:33:27 mykubeworker systemd-resolved[12446]: . IN DS 19036 8 2 
49aac11d7b6f6446702e54a1607371607a1a41855200fd2ce1cdde32f24e8fb5
  Dec 18 16:33:27 mykubeworker systemd-resolved[12446]: . IN DS 20326 8 2 
e06d44b80b8f1d39a95c0b0d7c65d08458e880409bbc683457104237c7f8ec8d
  Dec 18 16:33:27 mykubeworker systemd-resolved[12446]: Negative trust anchors: 
10.in-addr.arpa 16.172.in-addr.arpa 17.172.in-addr.arpa 18.172.in-addr.arpa 
19.172.in-addr.arpa 20.172.in-addr.arpa 21.172.in-addr.arpa 22.172.in-addr.arpa 
23.172.in-addr.arpa 24.172.in-addr.arpa 25.172.in-addr.arpa 26.172.in-addr.arpa 
27.172.in-addr.arpa 28.172.in-addr.arpa 29.172.in-addr.arpa 30.172.in-addr.arpa 
31.172.in-addr.arpa 168.192.in-addr.arpa d.f.ip6.arpa corp home internal 
intranet lan local private test
  Dec 18 16:33:27 mykubeworker systemd-resolved[12446]: Using system hostname 
'mykubeworker'.
  Dec 18 16:33:27 mykubeworker systemd[1]: Started Network Name Resolution.
  Dec 18 16:33:27 mykubeworker falco: 16:33:27.143027083: Error Filesystem 
modification detected (process=systemd-resolve [/lib/systemd/systemd-resolved]) 
command=/lib/systemd/systemd-resolved  parent=systemd workingDir=/ 
user=systemd-resolve event=mkdir syscallParams=[ mode=0  ])
  Dec 18 16:33:29 mykubeworker dhclient[3963]: DHCPDISCOVER on cali67b6d1b92f1 
to 255.255.255.255 port 67 interval 20 (xid=0x3613aa29)
  Dec 18 16:33:30 mykubeworker kubelet[3803]: I1218 16:33:30.1945523803 
log.go:172] http: TLS handshake error from 127.0.0.1:60608: EOF
  Dec 18 16:33:30 mykubeworker dhclient[3963]: DHCPDISCOVER on calic82ce5602e6 
to 255.255.255.255 port 67 interval 11 (xid=0xcd2df676)
  Dec 18 16:33:32 mykubeworker dhclient[3963]: DHCPDISCOVER on cali23e2ed5333b 
to 255.255.255.255 port 67 interval 12 (xid=0x88732c20)
  Dec 18 16:33:33 mykubeworker dhclient[3963]: DHCPDISCOVER on calia2ecd0e6842 
to 255.255.255.255 port 67 interval 16 (xid=0x495a3734)
  Dec 18 16:33:33 mykubeworker dhclient[3963]: DHCPDISCOVER on calia4cded2fdce 
to 255.255.255.255 port 67 interval 12 (xid=0x21021616)
  Dec 18 16:33:34 mykubeworker dhclient[3963]: DHCPDISCOVER on cali62cbcbcfc4e 
to 255.255.255.255 port 67 interval 12 (xid=0x9c551b5f)
  Dec 18 16:33:34 mykubeworker dhclient[3963]: DHCPDISCOVER on cali7a1f8cb0cb7 
to 255.255.255.255 port 67 interval 14 (xid=0x2775512f)
  Dec 18 16:33:38 mykubeworker dhclient[3963]: DHCPDISCOVER on cali993775d71fc 
to 255.255.255.255 port 67 interval 13 (xid=0x7b648445)
  Dec 18 16:33:39 mykubeworker dhclient[3963]: DHCPDISCOVER on califd5f6897e93 
to 255.255.255.255 port 67 interval 9 (xid=0x29f94242)
  Dec 18 16:33:40 mykubeworker kubelet[3803]: I1218 16:33:40.1952603803 
log.go:172] http: TLS handshake error from 127.0.0.1:60744: EOF
  Dec 18 16:33:40 mykubeworker dhclient[3963]: DHCPDISCOVER on calie82c4a2ad1a 
to 255.255.255.255 port 67 interval 20 (xid=0x8d37493e)
  Dec 18 16:33:41 mykubeworker dhclient[3963]: DHCPDISCOVER on caliee1def00d5f 
to 255.255.255.255 port 67 interval 11 (xid=0x9d48c529)
  Dec 18 16:33:41 mykubeworker dhclient[3963]: DHCPDISCOVER on calic82ce5602e6 
to 255.255.255.255 port 67 interval 10 (xid=0xcd2df676)
  Dec 18 16:33:42 mykubeworker dhclient[3963]: DHCPDISCOVER on cali3445044a923 
to 255.255.255.255 port 67 interval 8 (xid=0xa904895f)
  Dec 18 16:33:43 mykubeworker dhclient[3963]: No DHCPOFFERS received.
  Dec 18 16:33:43 mykubeworker dhclient[3963]: No working leases in persistent 
database - sleeping.
  Dec 18 16:33:43 mykubeworker systemd[1]: Stopping Network Name Resolution...
  Dec 

[Touch-packages] [Bug 1908898] Re: systemd-resolved service reach start-limit-hit if dhcp is not reachable

2021-01-19 Thread Jacopo Secchiero
At some point the dhcp client seems to try to search dhcp servers on all
interfaces (es calico, and docker interfaces), and start and stop
systemd-resolved very frequently:

No DHCPOFFERS received.
No working leases in persistent database - sleeping.
Stopping Network Name Resolution...
Stopped Network Name Resolution.
Starting Network Name Resolution...

I suppose that this can lead in the start-limit-hit problem.

I'm miss to understand when this starts to happen.

** Description changed:

  Hi there,
- i have found my kubernetes worker in "NotReady" state with message "PLEG is 
not healthy: pleg was last seen active" because dns resolution was not 
available anymore because "systemd-resolved" service was not able to restart 
after DHCP was not available for some seconds. The "systemd-resolved" service 
remain in fail state "start-limit-hit" after DHCP come back.
+ i have found my kubernetes worker in "NotReady" state with message "PLEG is 
not healthy: pleg was last seen active" because dns resolution was not 
available anymore because "systemd-resolved" service was not able to restart 
after DHCP was not available for some seconds. The "systemd-resolved" service 
remain in fail state "start-limit-hit".
  
  ubuntu version: "Ubuntu 18.04.5 LTS"
  systemd version: "237-3ubuntu10.42"
  
  Dec 18 16:33:26 mykubeworker dhclient[3963]: No DHCPOFFERS received.
  Dec 18 16:33:26 mykubeworker dhclient[3963]: No working leases in persistent 
database - sleeping.
  Dec 18 16:33:26 mykubeworker systemd[1]: Stopping Network Name Resolution...
  Dec 18 16:33:26 mykubeworker systemd[1]: Stopped Network Name Resolution.
  Dec 18 16:33:26 mykubeworker systemd[1]: Starting Network Name Resolution...
  Dec 18 16:33:27 mykubeworker systemd-resolved[12446]: Positive Trust Anchors:
  Dec 18 16:33:27 mykubeworker systemd-resolved[12446]: . IN DS 19036 8 2 
49aac11d7b6f6446702e54a1607371607a1a41855200fd2ce1cdde32f24e8fb5
  Dec 18 16:33:27 mykubeworker systemd-resolved[12446]: . IN DS 20326 8 2 
e06d44b80b8f1d39a95c0b0d7c65d08458e880409bbc683457104237c7f8ec8d
  Dec 18 16:33:27 mykubeworker systemd-resolved[12446]: Negative trust anchors: 
10.in-addr.arpa 16.172.in-addr.arpa 17.172.in-addr.arpa 18.172.in-addr.arpa 
19.172.in-addr.arpa 20.172.in-addr.arpa 21.172.in-addr.arpa 22.172.in-addr.arpa 
23.172.in-addr.arpa 24.172.in-addr.arpa 25.172.in-addr.arpa 26.172.in-addr.arpa 
27.172.in-addr.arpa 28.172.in-addr.arpa 29.172.in-addr.arpa 30.172.in-addr.arpa 
31.172.in-addr.arpa 168.192.in-addr.arpa d.f.ip6.arpa corp home internal 
intranet lan local private test
  Dec 18 16:33:27 mykubeworker systemd-resolved[12446]: Using system hostname 
'mykubeworker'.
  Dec 18 16:33:27 mykubeworker systemd[1]: Started Network Name Resolution.
  Dec 18 16:33:27 mykubeworker falco: 16:33:27.143027083: Error Filesystem 
modification detected (process=systemd-resolve [/lib/systemd/systemd-resolved]) 
command=/lib/systemd/systemd-resolved  parent=systemd workingDir=/ 
user=systemd-resolve event=mkdir syscallParams=[ mode=0  ])
  Dec 18 16:33:29 mykubeworker dhclient[3963]: DHCPDISCOVER on cali67b6d1b92f1 
to 255.255.255.255 port 67 interval 20 (xid=0x3613aa29)
  Dec 18 16:33:30 mykubeworker kubelet[3803]: I1218 16:33:30.1945523803 
log.go:172] http: TLS handshake error from 127.0.0.1:60608: EOF
  Dec 18 16:33:30 mykubeworker dhclient[3963]: DHCPDISCOVER on calic82ce5602e6 
to 255.255.255.255 port 67 interval 11 (xid=0xcd2df676)
  Dec 18 16:33:32 mykubeworker dhclient[3963]: DHCPDISCOVER on cali23e2ed5333b 
to 255.255.255.255 port 67 interval 12 (xid=0x88732c20)
  Dec 18 16:33:33 mykubeworker dhclient[3963]: DHCPDISCOVER on calia2ecd0e6842 
to 255.255.255.255 port 67 interval 16 (xid=0x495a3734)
  Dec 18 16:33:33 mykubeworker dhclient[3963]: DHCPDISCOVER on calia4cded2fdce 
to 255.255.255.255 port 67 interval 12 (xid=0x21021616)
  Dec 18 16:33:34 mykubeworker dhclient[3963]: DHCPDISCOVER on cali62cbcbcfc4e 
to 255.255.255.255 port 67 interval 12 (xid=0x9c551b5f)
  Dec 18 16:33:34 mykubeworker dhclient[3963]: DHCPDISCOVER on cali7a1f8cb0cb7 
to 255.255.255.255 port 67 interval 14 (xid=0x2775512f)
  Dec 18 16:33:38 mykubeworker dhclient[3963]: DHCPDISCOVER on cali993775d71fc 
to 255.255.255.255 port 67 interval 13 (xid=0x7b648445)
  Dec 18 16:33:39 mykubeworker dhclient[3963]: DHCPDISCOVER on califd5f6897e93 
to 255.255.255.255 port 67 interval 9 (xid=0x29f94242)
  Dec 18 16:33:40 mykubeworker kubelet[3803]: I1218 16:33:40.1952603803 
log.go:172] http: TLS handshake error from 127.0.0.1:60744: EOF
  Dec 18 16:33:40 mykubeworker dhclient[3963]: DHCPDISCOVER on calie82c4a2ad1a 
to 255.255.255.255 port 67 interval 20 (xid=0x8d37493e)
  Dec 18 16:33:41 mykubeworker dhclient[3963]: DHCPDISCOVER on caliee1def00d5f 
to 255.255.255.255 port 67 interval 11 (xid=0x9d48c529)
  Dec 18 16:33:41 mykubeworker dhclient[3963]: DHCPDISCOVER on calic82ce5602e6 
to 255.255.255.255 port 67 interval 10 (xid=0xcd2df676)
  Dec 18 16:33:42 mykubeworker dhclient[3963]: 

[Touch-packages] [Bug 1908898] Re: systemd-resolved service reach start-limit-hit if dhcp is not reachable

2021-01-19 Thread Jacopo Secchiero
** Summary changed:

- systemd-resolved service reach start-limit-hit if dhcp is not reachable of a 
while
+ systemd-resolved service reach start-limit-hit if dhcp is not reachable

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to systemd in Ubuntu.
https://bugs.launchpad.net/bugs/1908898

Title:
  systemd-resolved service reach start-limit-hit if dhcp is not
  reachable

Status in systemd package in Ubuntu:
  New

Bug description:
  Hi there,
  i have found my kubernetes worker in "NotReady" state with message "PLEG is 
not healthy: pleg was last seen active" because dns resolution was not 
available anymore because "systemd-resolved" service was not able to restart 
after DHCP was not available for some seconds. The "systemd-resolved" service 
remain in fail state "start-limit-hit" after DHCP come back.

  ubuntu version: "Ubuntu 18.04.5 LTS"
  systemd version: "237-3ubuntu10.42"

  Dec 18 16:33:26 mykubeworker dhclient[3963]: No DHCPOFFERS received.
  Dec 18 16:33:26 mykubeworker dhclient[3963]: No working leases in persistent 
database - sleeping.
  Dec 18 16:33:26 mykubeworker systemd[1]: Stopping Network Name Resolution...
  Dec 18 16:33:26 mykubeworker systemd[1]: Stopped Network Name Resolution.
  Dec 18 16:33:26 mykubeworker systemd[1]: Starting Network Name Resolution...
  Dec 18 16:33:27 mykubeworker systemd-resolved[12446]: Positive Trust Anchors:
  Dec 18 16:33:27 mykubeworker systemd-resolved[12446]: . IN DS 19036 8 2 
49aac11d7b6f6446702e54a1607371607a1a41855200fd2ce1cdde32f24e8fb5
  Dec 18 16:33:27 mykubeworker systemd-resolved[12446]: . IN DS 20326 8 2 
e06d44b80b8f1d39a95c0b0d7c65d08458e880409bbc683457104237c7f8ec8d
  Dec 18 16:33:27 mykubeworker systemd-resolved[12446]: Negative trust anchors: 
10.in-addr.arpa 16.172.in-addr.arpa 17.172.in-addr.arpa 18.172.in-addr.arpa 
19.172.in-addr.arpa 20.172.in-addr.arpa 21.172.in-addr.arpa 22.172.in-addr.arpa 
23.172.in-addr.arpa 24.172.in-addr.arpa 25.172.in-addr.arpa 26.172.in-addr.arpa 
27.172.in-addr.arpa 28.172.in-addr.arpa 29.172.in-addr.arpa 30.172.in-addr.arpa 
31.172.in-addr.arpa 168.192.in-addr.arpa d.f.ip6.arpa corp home internal 
intranet lan local private test
  Dec 18 16:33:27 mykubeworker systemd-resolved[12446]: Using system hostname 
'mykubeworker'.
  Dec 18 16:33:27 mykubeworker systemd[1]: Started Network Name Resolution.
  Dec 18 16:33:27 mykubeworker falco: 16:33:27.143027083: Error Filesystem 
modification detected (process=systemd-resolve [/lib/systemd/systemd-resolved]) 
command=/lib/systemd/systemd-resolved  parent=systemd workingDir=/ 
user=systemd-resolve event=mkdir syscallParams=[ mode=0  ])
  Dec 18 16:33:29 mykubeworker dhclient[3963]: DHCPDISCOVER on cali67b6d1b92f1 
to 255.255.255.255 port 67 interval 20 (xid=0x3613aa29)
  Dec 18 16:33:30 mykubeworker kubelet[3803]: I1218 16:33:30.1945523803 
log.go:172] http: TLS handshake error from 127.0.0.1:60608: EOF
  Dec 18 16:33:30 mykubeworker dhclient[3963]: DHCPDISCOVER on calic82ce5602e6 
to 255.255.255.255 port 67 interval 11 (xid=0xcd2df676)
  Dec 18 16:33:32 mykubeworker dhclient[3963]: DHCPDISCOVER on cali23e2ed5333b 
to 255.255.255.255 port 67 interval 12 (xid=0x88732c20)
  Dec 18 16:33:33 mykubeworker dhclient[3963]: DHCPDISCOVER on calia2ecd0e6842 
to 255.255.255.255 port 67 interval 16 (xid=0x495a3734)
  Dec 18 16:33:33 mykubeworker dhclient[3963]: DHCPDISCOVER on calia4cded2fdce 
to 255.255.255.255 port 67 interval 12 (xid=0x21021616)
  Dec 18 16:33:34 mykubeworker dhclient[3963]: DHCPDISCOVER on cali62cbcbcfc4e 
to 255.255.255.255 port 67 interval 12 (xid=0x9c551b5f)
  Dec 18 16:33:34 mykubeworker dhclient[3963]: DHCPDISCOVER on cali7a1f8cb0cb7 
to 255.255.255.255 port 67 interval 14 (xid=0x2775512f)
  Dec 18 16:33:38 mykubeworker dhclient[3963]: DHCPDISCOVER on cali993775d71fc 
to 255.255.255.255 port 67 interval 13 (xid=0x7b648445)
  Dec 18 16:33:39 mykubeworker dhclient[3963]: DHCPDISCOVER on califd5f6897e93 
to 255.255.255.255 port 67 interval 9 (xid=0x29f94242)
  Dec 18 16:33:40 mykubeworker kubelet[3803]: I1218 16:33:40.1952603803 
log.go:172] http: TLS handshake error from 127.0.0.1:60744: EOF
  Dec 18 16:33:40 mykubeworker dhclient[3963]: DHCPDISCOVER on calie82c4a2ad1a 
to 255.255.255.255 port 67 interval 20 (xid=0x8d37493e)
  Dec 18 16:33:41 mykubeworker dhclient[3963]: DHCPDISCOVER on caliee1def00d5f 
to 255.255.255.255 port 67 interval 11 (xid=0x9d48c529)
  Dec 18 16:33:41 mykubeworker dhclient[3963]: DHCPDISCOVER on calic82ce5602e6 
to 255.255.255.255 port 67 interval 10 (xid=0xcd2df676)
  Dec 18 16:33:42 mykubeworker dhclient[3963]: DHCPDISCOVER on cali3445044a923 
to 255.255.255.255 port 67 interval 8 (xid=0xa904895f)
  Dec 18 16:33:43 mykubeworker dhclient[3963]: No DHCPOFFERS received.
  Dec 18 16:33:43 mykubeworker dhclient[3963]: No working leases in persistent 
database - sleeping.
  Dec 18 16:33:43 mykubeworker systemd[1]: Stopping Network Name Resolution...
  

[Touch-packages] [Bug 1908898] [NEW] systemd-resolved service reach start-limit-hit if dhcp is not reachable of a while

2020-12-21 Thread Jacopo Secchiero
Public bug reported:

Hi there,
i have found my kubernetes worker in "NotReady" state with message "PLEG is not 
healthy: pleg was last seen active" because dns resolution was not available 
anymore because "systemd-resolved" service was not able to restart after DHCP 
was not available for some seconds. The "systemd-resolved" service remain in 
fail state "start-limit-hit" after DHCP come back.

ubuntu version: "Ubuntu 18.04.5 LTS"
systemd version: "237-3ubuntu10.42"

Dec 18 16:33:26 mykubeworker dhclient[3963]: No DHCPOFFERS received.
Dec 18 16:33:26 mykubeworker dhclient[3963]: No working leases in persistent 
database - sleeping.
Dec 18 16:33:26 mykubeworker systemd[1]: Stopping Network Name Resolution...
Dec 18 16:33:26 mykubeworker systemd[1]: Stopped Network Name Resolution.
Dec 18 16:33:26 mykubeworker systemd[1]: Starting Network Name Resolution...
Dec 18 16:33:27 mykubeworker systemd-resolved[12446]: Positive Trust Anchors:
Dec 18 16:33:27 mykubeworker systemd-resolved[12446]: . IN DS 19036 8 2 
49aac11d7b6f6446702e54a1607371607a1a41855200fd2ce1cdde32f24e8fb5
Dec 18 16:33:27 mykubeworker systemd-resolved[12446]: . IN DS 20326 8 2 
e06d44b80b8f1d39a95c0b0d7c65d08458e880409bbc683457104237c7f8ec8d
Dec 18 16:33:27 mykubeworker systemd-resolved[12446]: Negative trust anchors: 
10.in-addr.arpa 16.172.in-addr.arpa 17.172.in-addr.arpa 18.172.in-addr.arpa 
19.172.in-addr.arpa 20.172.in-addr.arpa 21.172.in-addr.arpa 22.172.in-addr.arpa 
23.172.in-addr.arpa 24.172.in-addr.arpa 25.172.in-addr.arpa 26.172.in-addr.arpa 
27.172.in-addr.arpa 28.172.in-addr.arpa 29.172.in-addr.arpa 30.172.in-addr.arpa 
31.172.in-addr.arpa 168.192.in-addr.arpa d.f.ip6.arpa corp home internal 
intranet lan local private test
Dec 18 16:33:27 mykubeworker systemd-resolved[12446]: Using system hostname 
'mykubeworker'.
Dec 18 16:33:27 mykubeworker systemd[1]: Started Network Name Resolution.
Dec 18 16:33:27 mykubeworker falco: 16:33:27.143027083: Error Filesystem 
modification detected (process=systemd-resolve [/lib/systemd/systemd-resolved]) 
command=/lib/systemd/systemd-resolved  parent=systemd workingDir=/ 
user=systemd-resolve event=mkdir syscallParams=[ mode=0  ])
Dec 18 16:33:29 mykubeworker dhclient[3963]: DHCPDISCOVER on cali67b6d1b92f1 to 
255.255.255.255 port 67 interval 20 (xid=0x3613aa29)
Dec 18 16:33:30 mykubeworker kubelet[3803]: I1218 16:33:30.1945523803 
log.go:172] http: TLS handshake error from 127.0.0.1:60608: EOF
Dec 18 16:33:30 mykubeworker dhclient[3963]: DHCPDISCOVER on calic82ce5602e6 to 
255.255.255.255 port 67 interval 11 (xid=0xcd2df676)
Dec 18 16:33:32 mykubeworker dhclient[3963]: DHCPDISCOVER on cali23e2ed5333b to 
255.255.255.255 port 67 interval 12 (xid=0x88732c20)
Dec 18 16:33:33 mykubeworker dhclient[3963]: DHCPDISCOVER on calia2ecd0e6842 to 
255.255.255.255 port 67 interval 16 (xid=0x495a3734)
Dec 18 16:33:33 mykubeworker dhclient[3963]: DHCPDISCOVER on calia4cded2fdce to 
255.255.255.255 port 67 interval 12 (xid=0x21021616)
Dec 18 16:33:34 mykubeworker dhclient[3963]: DHCPDISCOVER on cali62cbcbcfc4e to 
255.255.255.255 port 67 interval 12 (xid=0x9c551b5f)
Dec 18 16:33:34 mykubeworker dhclient[3963]: DHCPDISCOVER on cali7a1f8cb0cb7 to 
255.255.255.255 port 67 interval 14 (xid=0x2775512f)
Dec 18 16:33:38 mykubeworker dhclient[3963]: DHCPDISCOVER on cali993775d71fc to 
255.255.255.255 port 67 interval 13 (xid=0x7b648445)
Dec 18 16:33:39 mykubeworker dhclient[3963]: DHCPDISCOVER on califd5f6897e93 to 
255.255.255.255 port 67 interval 9 (xid=0x29f94242)
Dec 18 16:33:40 mykubeworker kubelet[3803]: I1218 16:33:40.1952603803 
log.go:172] http: TLS handshake error from 127.0.0.1:60744: EOF
Dec 18 16:33:40 mykubeworker dhclient[3963]: DHCPDISCOVER on calie82c4a2ad1a to 
255.255.255.255 port 67 interval 20 (xid=0x8d37493e)
Dec 18 16:33:41 mykubeworker dhclient[3963]: DHCPDISCOVER on caliee1def00d5f to 
255.255.255.255 port 67 interval 11 (xid=0x9d48c529)
Dec 18 16:33:41 mykubeworker dhclient[3963]: DHCPDISCOVER on calic82ce5602e6 to 
255.255.255.255 port 67 interval 10 (xid=0xcd2df676)
Dec 18 16:33:42 mykubeworker dhclient[3963]: DHCPDISCOVER on cali3445044a923 to 
255.255.255.255 port 67 interval 8 (xid=0xa904895f)
Dec 18 16:33:43 mykubeworker dhclient[3963]: No DHCPOFFERS received.
Dec 18 16:33:43 mykubeworker dhclient[3963]: No working leases in persistent 
database - sleeping.
Dec 18 16:33:43 mykubeworker systemd[1]: Stopping Network Name Resolution...
Dec 18 16:33:43 mykubeworker systemd[1]: Stopped Network Name Resolution.
Dec 18 16:33:43 mykubeworker systemd[1]: Starting Network Name Resolution...
Dec 18 16:33:43 mykubeworker systemd-resolved[12661]: Positive Trust Anchors:
Dec 18 16:33:43 mykubeworker systemd-resolved[12661]: . IN DS 19036 8 2 
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Dec 18 16:33:43 mykubeworker systemd-resolved[12661]: . IN DS 20326 8 2 
e06d44b80b8f1d39a95c0b0d7c65d08458e880409bbc683457104237c7f8ec8d
Dec 18 16:33:43 mykubeworker