GCP Kubernets

Question 1

I need to deploy containers to multiple regions, is it possible to create a GCP Kubernets cluster the spans regions?

Answer 1

No, when you are creating the Kubernetes cluster you have the option to create the cluster as regional or zonal.

Question 2

When creating the Kubernets cluster can I choose the node boot disk size?

Answer 2

Yes you can choose the boot disk size

Question 3

When creating the Kubernets cluster can I choose the node boot disk type?

Answer 3

Yes you can choose the boot disk type (persistent standard disk or SSD

Question 4

When creating a cluster what is Access scope?

Answer 4

Access scope is the level of access you have for GCP API’s

Question 5

Can kubernetes use GPU’s?

Answer 5

Yes 100%

Question 6

What are kubernetes pods?

Answer 6

Collection of containers?

Question 7

Will Kubernetes Engine support rolling updates?

Answer 7

Yes

Question 8

Is Kubernetes Engine a multi-zone cluster?

Answer 8

Yes, masters and nodes are spread across zones within a region.

Question 9

Will Kubernetes Engine auto scale your application?

Answer 9

Yes

Question 10

Will Kubernetes Engine load balance your incoming traffic?

Answer 10

Yes

Question 11

Where can I store images?

Answer 11

Google Container Registry

Question 12

How can I easily build images?

Answer 12

Google Container Builder

Question 13

With Google Container Builder, can i have custom build pipelines?

Answer 13

Yes

Question 14

By default where is a kubernetes cluster created?

Answer 14

In a zone, but we can opt for a regional cluster.

Question 15

How are master and nodes distributed in the cluster?

Answer 15

Across all nodes.

Question 16

For a regional cluster, what is the default number of node and masters?

Answer 16

3

Question 17

Can you convert a cluster from regional -> zonal or zonal -> regional?

Answer 17

No

Question 18

Can GKE autoscale?

Answer 18

Yes

Question 19

|With autoscaling turned on and where I have a single instance of an application, will I see disruption?

Answer 19

Yes, 100% your application will be stopped while it is recreated on a new node when an autoscaling event happens.

Question 20

What is Auto-repair?

Answer 20

Google will do checks on the cluster nodes in your cluster and if the node is unavailable for an extended time, the node will be replaced. Checks are performed using the health status.,

Question 21

What is the command to resize a cluster?

Answer 21

gcloud container clusters resize [CLUSTER_NAME] –node-pool [POOL_NAME] \
–size [SIZE]

Question 22

How do we enable autoscaling on a cluster?

Answer 22

–enable-autoscaling –minnode 1 –max-node 10

Question 23

What are the primary services used with GKE?

Answer 23

• Cloud source repository
• Cloud container builder
• Cloud container repository
• Google Kubernetes Engine

Question 24

I have a single zone cluster with 3 nodes, what will happen when I add a new zone?

Answer 24

The new zone will have 3 new nodes created, givign a total of 6 nodes. The cluster size will increace to 6.

Question 25

I have a cluster with a single zone, how do I increace the cluster size using CLI?

Answer 25

gcloud container cluster resize mycluster –node-pool default-pool –size

Question 26

Is is possible to create a regional cluster?

Answer 26

Yes, where 3 masters , one in each xzone and 3 nodes per zone is created.

Question 27

Can I change the machine type on a an existing pool?

Answer 27

Ni, you have to create a new pool and migrate containers.

Question 28

Can I change the machine type on a an existing pool?

Answer 28

N0, you have to create a new pool and migrate containers.