The command below obtains a shell script that downloads and installs GetMesh CLI binary that corresponds to the OS distribution detected by the script (currently MacOS and Linux are supported). Additionally the most recent supported version of Istio is downloaded. Also script adds GetMesh location to PATH variable (re-login is required to get PATH populated)
curl -sL https://istio.tetratelabs.io/getmesh/install.sh | bash
$ curl -sL https://istio.tetratelabs.io/getmesh/install.sh | bash tetratelabs/getmesh info checking GitHub for latest tag tetratelabs/getmesh info found version: 1.1.1 for v1.1.1/linux/amd64 tetratelabs/getmesh info installed /home/mathetake/./bin/getmesh
As explained earlier - GetMesh by default communicates to the cluster defined by your Kubernetes configuration. Please make sure you’re connected to the correct cluster before proceeding with the installation steps.
The most command example is to install the demo profile of Istio - that can be done with following command:
getmesh istioctl install --set profile=demo
$ getmesh istioctl install --set profile=demo This will install the Istio demo profile with ["Istio core" "Istiod" "Ingress gateways" "Egress gateways"] components into the cluster. Proceed? (y/N) Y ✔ Istio core installed ✔ Istiod installed ✔ Ingress gateways installed ✔ Egress gateways installed ✔ Installation complete
Verify it Worked!
After the previous step is completed, you can use GetMesh to verify that the installation has succeeeded.
Check the Installed GetMesh and Istio Versions
getmesh version to check the versions of GetMesh and the target Istio install:
$ getmesh version getmesh version: 1.1.4 active istioctl: 1.15.3-tetrate-v0 client version: 1.15.3-tetrate-v0 control plane version: 1.15.3-tetrate-v0 data plane version: 1.15.3-tetrate-v0 (2 proxies)
Check the Istio Configuration
getmesh config-validate to confirm that GetMesh can access and validate the configuration in the Istio cluster. With a fresh install of Kubernetes and Istio, the output will look similar to the below:
$ getmesh config-validate Running the config validator. This may take some time... NAMESPACE NAME RESOURCE TYPE ERROR CODE SEVERITY MESSAGE default default Namespace IST0102 Info The namespace is not enabled for Istio injection. Run 'kubectl label namespace default istio-injection=enabled' to enable it, or 'kubectl label namespace default istio-injection=disabled' to explicitly mark it as not needing injection. The error codes of the found issues are prefixed by 'IST' or 'KIA'. For the detailed explanation, please refer to - https://istio.io/latest/docs/reference/config/analysis/ for 'IST' error codes - https://kiali.io/documentation/latest/validations/ for 'KIA' error codes
Read on for next steps with Tetrate Istio Distro and GetMesh.
For community support, join Tetrate’s #tid-and-getmesh Slack Channel.