Deploy Ghost with MySQL DB replication using helm chart

Muneer Syed — Thu, 18 Jan 2024 22:14:12 +0000

Ghost is used by creators to run their own website to publish private content

Flow Diagram

Quickstart Install

These instructions are for ghost installation on bare metal Kubernetes cluster using helm.

Run the update dependency command to create bitnami MySQL helm chart in the ghost helm charts directory

git clone https://github.com/Muneer94/ghost-deploy.git
cd ghost-deploy
helm dependency update ./ghost --debug

Deploy local-path-provisioner storage class but it does not support readwritemany so for high availability of your Kubernetes cluster better to use longhorn

# mak sure following packages are installed in kubernetes nodes
sudo apt-get install nfs-common cifs-utils -y
# longhorn
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm upgrade --install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
# make longhorn storage class as false so that we won't have multiple storage classes as default
kubectl patch storageclass longhorn -p '{"metadata": {"annotations":{"storageclass.kubernetes.io/is-default-class":"false"}}}'

Deploy ghost

helm upgrade --install ghost ghost --namespace example --create-namespace -f custom/ghost/example.yaml

Deploy ingress nginx controller to access ghost publicly with custom values in custom/ghost directory

helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx
helm repo update
helm upgrade --install ingress-nginx ingress-nginx/ingress-nginx --namespace ingress-nginx --create-namespace -f custom/ghost/nginx.yaml

Create ingress rules for routing traffic to ghost pod

kubectl apply -f custom/ghost/ingress.yaml -n example

Deploying self hosted ghost on kubernetes with multiple replicas is not supported yet, we will be deploying it with only 1 replica.

How to install latest yarn version

Muneer Syed — Sun, 24 Dec 2023 16:47:19 +0000

To install the latest version of yarn4.x we need nodejs to be installed first and yarn1.x version

Nodejs Installation Instructions

Ubuntu:

Import nodesource GPG key

sudo apt-get update  
sudo apt-get install -y ca-certificates curl gnupg  
sudo mkdir -p /etc/apt/keyrings  
curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | sudo gpg - dearmor -o /etc/apt/keyrings/nodesource.gpg

Add nodejs deb URL to the sources list

NODE_MAJOR=21  
echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_$NODE_MAJOR.x nodistro main" | sudo tee /etc/apt/sources.list.d/nodesource.list

NODE_MAJOR can be changed depending on the version you need.

NODE_MAJOR=16  
NODE_MAJOR=18  
NODE_MAJOR=20  
NODE_MAJOR=21

Now run apt-get update and install nodejs

sudo apt-get update  
sudo apt-get install nodejs -y

Uninstall:

sudo apt-get purge nodejs  
rm -r /etc/apt/sources.list.d/nodesource.list  
rm -r /etc/apt/keyrings/nodesource.gpg

Mac:

Install:

brew install node

Uninstall:

brew uninstall node

Yarn1.x Installation Instructions

Ubuntu:

Import yarn GPG key

curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -

Add yarn deb URL to the sources list

echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list

Now run apt-get update and install yarn

sudo apt-get update  
sudo apt-get install --no-install-recommends yarn -y

We don’t want apt-get to install nodejs again as we already installed the latest version of nodejs from the above method, so we are specifying --no-install-recommends in apt-get to not install nodejs along with yarn.

Uninstall:

sudo apt-get purge yarn  
rm -r /etc/apt/sources.list.d/yarn.list

Mac:

Install:

brew install yarn

Uninstall:

brew uninstall yarn

Yarn4.x Installation Instructions

After following the above methods we assume that yarn1.x binary is added to your path, if not run the following command to add it to your path

corepack enable

If corepack is not installed already use npm to install it globally

npm install -g corepack

Now we have to create a project directory and switch to that directory

mkdir yarn-project  
cd yarn-project

Initialize the project to use the latest version of yarn

yarn init -2

If you want to update yarn to the latest version you need to run:

yarn set version stable  
yarn install

Now yarn will be configured to use the most recent stable binary

Yarn will periodically gather anonymous telemetry to disable it run

yarn config set --home enableTelemetry 0

DEV Community: Muneer Syed

Deploy Ghost with MySQL DB replication using helm chart

Flow Diagram

Quickstart Install

How to install latest yarn version

Nodejs Installation Instructions

Ubuntu:

Uninstall:

Mac:

Install:

Uninstall:

Yarn1.x Installation Instructions

Ubuntu:

Uninstall:

Mac:

Install:

Uninstall:

Yarn4.x Installation Instructions