Course content

I'm not sure I can understand the marked phrase:

According to the definition of bridge here https://wiki.linuxfoundation.org/networking/bridge it connects two ethernet networks. So when we create a bridge I expect rather two ethernet networks (interfaces) to be provided but ip range.

Could you please explain more?

is there such a thing or is it a typo?

Does it really call curl or is it true for specific version?

$ sudo strace -f -e trace=network kubectl get po 2>&1
strace: Process 29280 attached
strace: Process 29281 attached
strace: Process 29282 attached
strace: Process 29283 attached
strace: Process 29284 attached
strace: Process 29285 attached
strace: Process 29286 attached
[pid 29279] socket(PF_INET, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, IPPROTO_IP) = 3
[pid 29279] setsockopt(3, SOL_SOCKET, SO_BROADCAST, [1], 4) = 0
[pid 29279] connect(3, {sa_family=AF_INET, sin_port=htons(8443), sin_addr=inet_addr("192.168.99.101")}, 16) = -1 EINPROGRESS (Operation now in progress)
[pid 29279] getsockopt(3, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
[pid 29279] getpeername(3, {sa_family=AF_INET, sin_port=htons(8443), sin_addr=inet_addr("192.168.99.101")}, [16]) = 0
[pid 29279] getsockname(3, {sa_family=AF_INET, sin_port=htons(41762), sin_addr=inet_addr("192.168.99.1")}, [16]) = 0
[pid 29279] setsockopt(3, SOL_TCP, TCP_NODELAY, [1], 4) = 0
[pid 29279] setsockopt(3, SOL_SOCKET, SO_KEEPALIVE, [1], 4) = 0
[pid 29279] setsockopt(3, SOL_TCP, TCP_KEEPINTVL, [30], 4) = 0
[pid 29279] setsockopt(3, SOL_TCP, TCP_KEEPIDLE, [30], 4) = 0
strace: Process 29287 attached
No resources found.
[pid 29284] +++ exited with 0 +++
[pid 29287] +++ exited with 0 +++
[pid 29286] +++ exited with 0 +++
[pid 29285] +++ exited with 0 +++
[pid 29283] +++ exited with 0 +++
[pid 29282] +++ exited with 0 +++
[pid 29281] +++ exited with 0 +++
[pid 29280] +++ exited with 0 +++
+++ exited with 0 +++

@serewicz thanks for checking. Sorry for being noisy. Would be great to get the answers : )

one more question:

What does "group" mean here?

I thought pod has no controller: kubelet creates it according to spec and that's all: no status check, no healing.

What is the name of the pod's controller watch loop ?

forgotten r

however

:'(

Record would work if we run it like this:

$ kubectl set image deploy/ghost ghost=ghost:08 --all --record=true
deployment.extensions/ghost image updated

$ kubectl rollout history deployment ghost 
deployment.extensions/ghost 
REVISION  CHANGE-CAUSE
1         <none>
2         <none>
3         kubectl set image deploy/ghost ghost=ghost:08 --all=true --record=true

will-ly place

be-lly place

Just curious. Assuming the "kernel" is linux kernel, what about windows server one?
If I remember correct it was said, that windows server also may be a worker node.

sorry but it is not clear why do we need to do those last steps with overriding port and redeploying ?

@chrispokorni should I start separate topic for each question and send typos here or somehow else ?

--export
if you have already created object, can we apply dry run to it ?

My question was not to expose curl calls but about course content which says - kubectl makes curl calls for you internally. Even with verbosity it generates curl command I was not able to find curl calls in kubectl. Does kubectl do curl calls for me when I run it?

The commands which you can see on screens do not work if you type them. Did you try?

About 80 port. Please double check. Last step does not change anything: endpoint still the same port but internally container listens on 80 instead of 8080. At this exercise after changing port from 80 to 8080 no checks, no further explanation. Can you tell me why we have to change port from 80 to 8080 ?

Reviewed. Was no able to find LoadBalancer. Can you share with me, which exercises was with LoadBalancer?

9.10, PV name is invalid due to The PersistentVolume "10Gpv01" is invalid: metadata.name: Invalid value: "10Gpv01": a DNS-1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character (e.g. 'example.com', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')