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![Yevhenii Orlov (EPAM) [GCP]'s avatar](https://secure.gravatar.com/avatar/1c57ec26c9ed706abfd3994759f0b42d5b0711e2f79e3f70565a1c80e4d96351?s=144&d=identicon "Yevhenii Orlov (EPAM) [GCP]")
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<!--- Deploy -->
# Deploy helm chart
## Introduction
This chart bootstraps a deployment on a [Kubernetes](https://kubernetes.io) cluster using [Helm](https://helm.sh) package manager.
## Prerequisites
The code was tested on **Kubernetes cluster** (v1.21.11) with **Istio** (1.12.6)
> Istio is installed with Istio Ingress Gateway
- Kubernetes cluster version can be checked with the command:
`kubectl version --short | grep Server`
The output will be similar to the following:
```console
Server Version: v1.21.11-gke.1100
```
- Istio version can be checked in different ways, it is out of scope for this README. You can find more information [here](https://istio.io/latest/docs/setup/install/).
The following command shows how to check version if Anthos Service Mesh is used:
`kubectl -n istio-system get pods -lapp=istiod -o=jsonpath='{.items[0].metadata.labels.istio\.io/rev}'`
The output will be similar to the following:
```console
asm-1132-5
```
> It is possible to use other versions, but it hasn't been tested
This example describes installation in **Development mode**:
- In this mode helm chart is installed to the namespace **not labeled with Istio**.
> More information about labeling can be found [here](https://istio.io/latest/docs/setup/additional-setup/sidecar-injection) (Istio) or [here](https://cloud.google.com/service-mesh/docs/managed/select-a-release-channel#default-injection-labels) (Anthos Service Mesh)
You can find all labels for your namespace with the command:
`kubectl get namespace <namespace> -o jsonpath={.metadata.labels}`
The output shows that there are no any labels related to Istio:
```console
{"kubernetes.io/metadata.name":"default"}
```
When the namespace is labeled with Istio, the output could be:
```console
{"istio-injection":"enabled","kubernetes.io/metadata.name":"default"}
```
### Operation system
The code works in Debian-based Linux (Debian 10 and Ubuntu 20.04) and Windows WSL 2. Also, it works but is not guaranteed in Google Cloud Shell. All other operating systems, including macOS, are not verified and supported.
### Packages
Packages are only needed for installation from a local computer.
- **HELM** (version: v3.7.1 or higher) [helm](https://helm.sh/docs/intro/install/)
Helm version can be checked with the command:
`helm version --short`
The output will be similar to the following:
```console
v3.7.1+gd141386
```
- **Kubectl** (version: v1.21.0 or higher) [kubectl](https://kubernetes.io/docs/tasks/tools/#kubectl)
Kubectl version can be checked with the command:
`kubectl version --short | grep Client`
The output will be similar to the following:
```console
Client Version: v1.21.0
```
## Installation
First you need to set variables in **values.yaml** file using any code editor. Some of the values are prefilled, but you need to specify some values as well. You can find more information about them below.
### Common variables
| Name | Description | Type | Default |Required |
|------|-------------|------|---------|---------|
**requestsCpu** | amount of requests CPU | string | 0.1 | yes
**requestsMemory** | amount of requests memory| string | 384M | yes
**limitsCpu** | CPU limit | string | 1 | yes
**limitsMemory** | memory limit | string | 1G | yes
**serviceAccountName** | name of your service account | string | legal | yes
**imagePullPolicy** | when to pull image | string | IfNotPresent | yes
**image** | your image name | string | - | yes
### Bootstrap variables
| Name | Description | Type | Default |Required |
|------|-------------|------|---------|---------|
**bootstrapImage** | name of the bootstrap image | string | - | yes
**bootstrapServiceAccountName** | name of the bootstrap SA | string | - | yes
### Config variables
| Name | Description | Type | Default |Required |
|------|-------------|------|---------|---------|
**configmap** | configmap to be used | string | legal-config | yes
**appName** | name of the app | string | legal | yes
**minioSecretName** | Secret name for minio service | string | legal-minio-secret | yes
**postgresSecretName** | Secret name for postgres service | string | legal-postgres-secret | yes
**rabbitmqSecretName** | Secret name for rabbitmq service | string | rabbitmq-secret | yes
**bootstrapSecretName** | Secret name for bootstrap | string | datafier-secret | yes
**onPremEnabled** | whether on-prem is enabled | boolean | false | yes
**istionEnabled** | whether enable istio resources | boolean | true | yes
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**bootstrapEnabled** | whether bootstrap is enabled | boolean | false | yes
**domain** | your domain | string | - | yes
### Install the helm chart
Run this command from within this directory:
```console
helm install gcp-legal-deploy .
```
## Uninstalling the Chart
To uninstall the helm deployment:
```console
helm uninstall gcp-legal-deploy
```
To delete secrets and PVCs:
```console
kubectl delete secret --all; kubectl delete pvc --all
```
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