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GCP Prerequisites
Prerequisites
Before beginning a DKP installation, verify that you have:
An x86_64-based Linux or macOS machine with a supported version of the operating system.
Download the
dkpbinary for Linux, or macOS. To check which version of DKP you installed for compatibility reasons, run thedkp version -hcommand (dkp version).A Container engine/runtime installed is required to bootstrap:
Version Docker® container engine version 18.09.2 or higher installed for Linux or MacOS - On macOS, Docker runs in a virtual machine which needs configured with at least 8 GB of memory.
Version 4.0 of Podman or higher for Linux. Host requirements found here: Host Requirements
kubectl for interacting with the running cluster.
Install the GCP
gcloudCLI by following the https://cloud.google.com/sdk/docs/install
Control plane nodes
You must have at least three control plane nodes. Each control plane node should have at least:
4 cores
16 GiB memory
Approximately 80 GiB of free space for the volume used for
/var/lib/kubeletand/var/lib/containerd.Disk usage must be below 85% on the root volume.
DKP on GCP defaults to deploying an n2-standard-4 instance with an 80GiB root volume for control plane nodes, which meets the above requirements.
Worker nodes
You must have at least four worker nodes. The specific number of worker nodes required for your environment can vary depending on the cluster workload and size of the nodes. Each worker node should have at least:
8 cores
32 GiB memory
Around 80 GiB of free space for the volume used for
/var/lib/kubeletand/var/lib/containerd.Disk usage must be below 85% on the root volume.
DKP on GCP defaults to deploying a n2-standard-8 instance with an 80GiB root volume for worker nodes, which meets the above requirements.
GCP Prerequisites:
Verify that your Google Cloud project does not have the Enable OS Login feature enabled.
The Enable OS Login feature is sometimes enabled by default in GCP projects. If the OS login feature is enabled, KIB will not be able to ssh to the VM instances it creates and will not be able to successfully create an image.
To check if it is enabled, use the commands on this page https://cloud.google.com/compute/docs/metadata/setting-custom-metadata#console_2 to inspect the metadata configured in in your project. If you find the the enable-oslogin flag set to TRUE, you must remove (or set it to FALSE) to use KIB.
The user creating the Service Accounts needs additional privileges in addition to the Editor role.
See Purple Note Box on GCP Roles