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# FAQ
## What should be configured before installation?
1. You should have configured connection to existed k8s cluster
2. Helm must be installed
3. You should download chart external dependencies, using following commands:
```
helm repo add bitnami https://charts.bitnami.com/bitnami
helm repo update
helm dependency update
```
4. (Optional) Install ingress of your choice (for example: < https: / / github . com / kubernetes / ingress-nginx > )
5. (Optional) Create certificates for https (for example: < https: / / github . com / jetstack / cert-manager / > )
6. (Optional) Create values.override.yaml and override there parameters you want
7. Change postgresql password as described below
8. Add ingress to values.override.yaml(example also below)
7. Deploy cvat using command below
## How to deploy new version of chart to cluster?
Execute following command:
```helm upgrade < release_name > --install ./helm-chart -f ./helm-chart/values.yaml -f values.override.yaml(if exists) --namespace < desired namespace > ```
## How to create superuser?
```
HELM_RELEASE_NAMESPACE="< insert > " & & \
HELM_RELEASE_NAME="< insert > " & & \
BACKEND_POD_NAME=$(kubectl get pod --namespace $HELM_RELEASE_NAMESPACE -l tier=backend,app.kubernetes.io/instance=$HELM_RELEASE_NAME -o jsonpath='{.items[0].metadata.name}') & & \
kubectl exec -it --namespace $HELM_RELEASE_NAMESPACE $BACKEND_POD_NAME -c cvat-backend-app-container -- python manage.py createsuperuser
```
## How to change embedded postgresql password?
There are several passwords used here, for security reasons - better change them all.
# CVAT chart manual
- [CVAT chart manual ](#cvat-chart-manual )
- [Prerequisites ](#prerequisites )
- [Installing dependencies ](#installing-dependencies )
- [Optional steps ](#optional-steps )
- [Configuration ](#configuration )
- [Postgresql password? ](#postgresql-password )
- [Ingress parameters ](#ingress-parameters )
- [Deployment ](#deployment )
- [With overrides: ](#with-overrides )
- [Without overrides: ](#without-overrides )
- [Post-deployment configuration ](#post-deployment-configuration )
- [How to create superuser? ](#how-to-create-superuser )
- [FAQ ](#faq )
- [What is kubernetes and how it is working? ](#what-is-kubernetes-and-how-it-is-working )
- [What is helm and how it is working? ](#what-is-helm-and-how-it-is-working )
- [How to enable ingress: ](#how-to-enable-ingress )
- [How to understand what diff will be inflicted by 'helm upgrade'? ](#how-to-understand-what-diff-will-be-inflicted-by-helm-upgrade )
- [I want to use my own postgresql/redis with your chart. ](#i-want-to-use-my-own-postgresqlredis-with-your-chart )
- [I want to override some settings in values.yaml. ](#i-want-to-override-some-settings-in-valuesyaml )
- [Why you used external charts to provide redis and postgres? ](#why-you-used-external-charts-to-provide-redis-and-postgres )
## Prerequisites
1. Installed and configured [kubernetes ](https://kubernetes.io/ ) cluster.
2. Installed [kubectl ](https://kubernetes.io/docs/tasks/tools/#kubectl )
3. Installed [Helm ](https://helm.sh/ ).
4. Installed [dependencies ](#installing-dependencies )
### Installing dependencies
To install and/or update run:
```sh
helm repo add bitnami https://charts.bitnami.com/bitnami
helm repo update
helm dependency update
```
### Optional steps
1. Install ingress of your choice (for example: < https: / / github . com / kubernetes / ingress-nginx > )
2. Create certificates for https (for example: < https: / / github . com / jetstack / cert-manager / > )
## Configuration
1. Create `values.override.yaml` file inside `helm-chart` directory.
2. Fill `values.override.yaml` with new parameters for chart.
3. Override [postgresql password ](#postgresql-password )
4. (Optional) Add [ingress parameters ](#ingress-parameters )
### Postgresql password?
Put below into your `values.override.yaml`
```yaml
postgresql:
secret:
password: cvat_postgresql
postgres_password: cvat_postgresql_postgres
replication_password: cvat_postgresql_replica
```
Or, if you know how to work with k8s - you could create your own secret and use it here:
password: < insert_password >
postgres_password: < insert_postgres_password >
replication_password: < insert_replication_password >
```
Or create your own secret and use it with:
```yaml
postgresql:
global:
postgresql:
existingSecret: cvat-postgres-secret
existingSecret: < secret >
```
### Ingress parameters
Paste below parameters to `values.override.yaml`
```yaml
ingress:
enabled: true
annotations:
kubernetes.io/ingress.class: nginx
kubernetes.io/tls-acme: "true"
ingress.kubernetes.io/ssl-redirect: "true"
nginx.ingress.kubernetes.io/use-regex: "true"
nginx.ingress.kubernetes.io/secure-backends: "true"
nginx.ingress.kubernetes.io/proxy-body-size: "0"
nginx.ingress.kubernetes.io/proxy-send-timeout: "120"
nginx.ingress.kubernetes.io/proxy-read-timeout: "120"
cert-manager.io/cluster-issuer: < issuer_name >
hosts:
- host: < your_domain >
paths:
- path: "/api/.*|git/.*|tensorflow/.*|auto_annotation/.*|analytics/.*|static/.*|admin|admin/.*|documentation/.*|dextr/.*|reid/.*"
service:
name: < release_name > -backend-service
port: 8080
- path: "/"
pathType: "Prefix"
service:
name: < release_name > -frontend-service
port: 80
tls:
- hosts:
- < your_domain >
secretName: ingress-tls-cvat
```
## How to describe ingress:
## Deployment
Make sure you are using correct kubernetes context. You can check it with `kubectl config current-context` .
Execute following command from repo root directory
### With overrides:
```helm upgrade -n < desired_namespace > < release_name > -i --create-namespace ./helm-chart -f ./helm-chart/values.yaml -f ./helm-chart/values.override.yaml```
### Without overrides:
```helm upgrade -n < desired_namespace > < release_name > -i --create-namespace ./helm-chart -f ./helm-chart/values.yaml```
## Post-deployment configuration
1. Create [super user ](#how-to-create-superuser )
### How to create superuser?
```sh
HELM_RELEASE_NAMESPACE="< desired_namespace > " & & \
HELM_RELEASE_NAME="< release_name > " & & \
BACKEND_POD_NAME=$(kubectl get pod --namespace $HELM_RELEASE_NAMESPACE -l tier=backend,app.kubernetes.io/instance=$HELM_RELEASE_NAME -o jsonpath='{.items[0].metadata.name}') & & \
kubectl exec -it --namespace $HELM_RELEASE_NAMESPACE $BACKEND_POD_NAME -c cvat-backend-app-container -- python manage.py createsuperuser
```
## FAQ
### What is kubernetes and how it is working?
See < https: / / kubernetes . io / >
### What is helm and how it is working?
See < https: / / helm . sh / >
### How to enable ingress:
Just set `ingress.enabled:` to `true` , then copy example, uncomment it and change values there
## How to understand what diff will be inflicted by 'helm upgrade'?
### How to understand what diff will be inflicted by 'helm upgrade'?
You can use < https: / / github . com / databus23 / helm-diff # install > for that
## I want to use my own postgresql/redis with your chart.
### I want to use my own postgresql/redis with your chart.
Just set `postgresql.enabled` or `redis.enabled` to `false` , as described below.
Then - put your instance params to "external" field
## I want to override some settings in values.yaml.
### I want to override some settings in values.yaml.
Just create file `values.override.yaml` and place your changes here, using same structure as in `values.yaml` .
Then reference it in helm update/install command using `-f` flag
## Why you used external charts to provide redis and postgres?
### Why you used external charts to provide redis and postgres?
Because they definitely know what they do better then we are, so we are getting more quality and less support
## What is kubernetes and how it is working?
See < https: / / kubernetes . io / >
## What is helm and how it is working?
See < https: / / helm . sh / >
Krzysztof Begiedza
4 years ago
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