I've developed a NodeJS script to deploy review apps to Kubernetes for my GitLab repository, using the Kubernetes NodeJS client.
Including abbreviated definitions of Kubernetes resources for thoroughness:
const k8s = require('@kubernetes/client-node');
const logger = require('../logger');
const {
CI_COMMIT_REF_NAME,
CI_ENVIRONMENT_SLUG,
CI_ENVIRONMENT_URL,
CI_REGISTRY_IMAGE,
KUBE_NAMESPACE,
} = process.env;
const { hostname } = new URL(CI_ENVIRONMENT_URL);
const mysqlDeployment = {
apiVersion: 'apps/v1',
kind: 'Deployment',
metadata: {
name: `${CI_ENVIRONMENT_SLUG}-mysql`,
labels: {
app: CI_ENVIRONMENT_SLUG,
tier: 'mysql',
},
},
spec: {...}
};
// More resource definitions...
Using functions to deploy these resources to Kubernetes:
async function noConflict(resource, create, patch) {
const { kind } = resource;
const { name } = resource.metadata;
try {
// Create or patch resource based on conflict
} catch (err) {
// Handle error if resource exists
}
}
async function deploy() {
// Set up Kubernetes clients and deploy resources
}
await deploy();
Encountering issues when replacing running resources:
{ detailed HTTP request body with errors }Tried modifying noConflict for current version retrieval, but faced another error.
{ detailed HTTP request body with immutable field errors }Seeking solutions for updating existing resources smoothly. Database continuity is secondary.
Update:
Refactored code based on feedback, incorporating read operations for respective resources.
Updated code snippet...Current implementation doesn't update the review environment effectively.
Update:
Addressed suggestions by further switching to patch calls instead of replace for updates.
Updated code snippet...However, encountered an "Unsupported Media Type" error upon implementing this change.