TargetPort is port at which Docker Container Listens
NodePort is port at which NodePort - public ip of node listens
Port is port at which PODS listens
Monday, December 13, 2021
Kubectl : Debugging : How to : Debug Kubernetes : Debugging Kubernetes : kubernetes debugging : Kubernetes debug
https://linuxhint.com/sort-kubectl-events-by-time/
kubectl get events --sort-by='.lastTimestamp' -n amex-poc
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kubectl describe pod foobar-1h6yyy -n namespace
kubectl describe svc foobarservice -n namespace
kubectl describe deployment foobardeploy -n namespace
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kubectl logs mongodb-2 -n amex-poc mongodb --tail=200
kubectl logs mongodb-2 -n amex-poc mongodb --follow
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kubectl get pods -n namespace1 -w -l app=io.dev.service
-w is watch
-l "key=value" Labels
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kubectl create -f rabbitmq-deployment.yml -f rabbitmq-service.yml
kubectl delete -f rabbitmq-service.yml -f rabbitmq-deployment.yml
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kubectl delete deployment foodeploy -n namespace1
kubectl delete deployments foodeploy -n namespace1
kubectl delete service foobarservice -n namespace1
kubectl delete svc foobarservice -n namespace1
deployments ==== deployment
svc ====service ==== services
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AWS : Secrets : Code Snippet : Nodejs
// Use this code snippet in your app.
// If you need more information about configurations or implementing the sample code, visit the AWS docs:
https://aws.amazon.com/developers/getting-started/nodejs/
// Load the AWS SDK
var AWS = require('aws-sdk'),
region = "us-east-1",
secretName = "qa/cca-product/mongodb",
secret,
decodedBinarySecret;
// Create a Secrets Manager client
var client = new AWS.SecretsManager({
region: region
});
// In this sample we only handle the specific exceptions for the 'GetSecretValue' API.
// See https://docs.aws.amazon.com/secretsmanager/latest/apireference/API_GetSecretValue.html
// We rethrow the exception by default.
client.getSecretValue({SecretId: secretName}, function(err, data) {
if (err) {
if (err.code === 'DecryptionFailureException')
// Secrets Manager can't decrypt the protected secret text using the provided KMS key.
// Deal with the exception here, and/or rethrow at your discretion.
throw err;
else if (err.code === 'InternalServiceErrorException')
// An error occurred on the server side.
// Deal with the exception here, and/or rethrow at your discretion.
throw err;
else if (err.code === 'InvalidParameterException')
// You provided an invalid value for a parameter.
// Deal with the exception here, and/or rethrow at your discretion.
throw err;
else if (err.code === 'InvalidRequestException')
// You provided a parameter value that is not valid for the current state of the resource.
// Deal with the exception here, and/or rethrow at your discretion.
throw err;
else if (err.code === 'ResourceNotFoundException')
// We can't find the resource that you asked for.
// Deal with the exception here, and/or rethrow at your discretion.
throw err;
}
else {
// Decrypts secret using the associated KMS CMK.
// Depending on whether the secret is a string or binary, one of these fields will be populated.
if ('SecretString' in data) {
secret = data.SecretString;
} else {
let buff = new Buffer(data.SecretBinary, 'base64');
decodedBinarySecret = buff.toString('ascii');
}
}
// Your code goes here.
});
Kubectl : Copy from POD or Copy to POD
[Copy something to Pod]
kubectl cp /DBScript/Extraction.tar mongodb-0:/tmp -n namespace1
[Copy something from Pod]
kubectl cp mongodb-0:/tmp/ . -n namespace1
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