How Do You Install Docker on Debian Linux in GCP?

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Problem scneario
In Google Cloud Platform you have a Debian Linux server. You want to install Docker on it. What do you do?

Solution
1. Create a file called dockerinstall.sh in the /tmp/ directory with the following content:

apt-get -y update
apt-get install -y apt-transport-https ca-certificates wget software-properties-common

wget https://download.docker.com/linux/debian/gpg
apt-key add gpg

echo “deb [arch=amd64] https://download.docker.com/linux/debian $(lsb_release -cs) stable” | sudo tee -a /etc/apt/sources.list.d/docker.list
apt-get -y update

apt-get -y install docker-ce

2.

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How Do You Troubleshoot the Google Kubernetes Engine error “Request had insufficient authentication scopes”?

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Problem scenario
 You run a command like this:
gcloud container clusters get-credentials standard-cluster-1 –region us-central1-a

But you receive one of the following messages:
“Fetching cluster endpoint and auth data.
ERROR: (gcloud.container.clusters.get-credentials) ResponseError: code=403, message=Request had insufficient authentication scopes.”

ERROR: (gcloud.projects.describe) User [123456789-compute@developer.gserviceaccount.com] does not have permission to access projects instance [123456789] (or it may not exist): Request had insufficient
authentication scopes.

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How Do You Troubleshoot This Error “error executing access token command /google/google-cloud-sdk/bin/gcloud”?

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Problem scenario
You run a command like this to view your Google Kubernetes Engine (GKE) clusters:

kubectl get pods

You see this:
‘Unable to connect to the server: error executing access token command “/google/google-cloud-sdk/bin/gcloud config config-helper –format=json”: err=fork/exec /google/google-cloud-sdk/bin/gcloud: no such file or directory output= stderr=’

What should you do?

Solution
Check your config file in the .kube directory.

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How Do You Install the Azure CLI on a Debian/Ubuntu Linux Server?

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Problem scenario
You want to use the Azure CLI on a Debian/Ubuntu Linux server.

Solution

1. Run these commands:

sudo apt-get -y update
sudo apt-get install -y curl apt-transport-https lsb-release gpg
curl -sL https://packages.microsoft.com/keys/microsoft.asc | \
gpg –dearmor | \
sudo tee /etc/apt/trusted.gpg.d/microsoft.asc.gpg /dev/null
AZ_REPO=$(lsb_release -cs)
echo “deb [arch=amd64] https://packages.microsoft.com/repos/azure-cli/ $AZ_REPO main” | \
sudo tee /etc/apt/sources.list.d/azure-cli.list
sudo apt-get -y update
sudo apt-get -y install azure-cli

2.

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How Do You Troubleshoot the Kubernetes Problem “connection to the server localhost:8080 was refused”?

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One of the following applies (with #1 being related to Kubernetes anywhere and #2 only being relevant to running Kubernetes in GCP).

Problem scenario #1 (any Kubernetes)
You run a command like this: kubectl get svc

You get an error like this: The connection to the server localhost:8080 was refused – did you specify the right host or port?

What should you do?

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How Do You Troubleshoot a kubectl Command That Returns “The connection to the server localhost:8080 was refused – did you specify the right host or port?” when using AWS and EKS?

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One of the following problems pertains to you.

Problem scenario #1
You have a kubectl server. You created some new EKS clusters. How do you get the kubectl server to interface, control or manage the new EKS clusters.

or

Problem scenario #2
You are running EKS. You run this command:

kubectl get cluster-info

But you receive this message: “The connection to the server localhost:8080 was refused – did you specify the right host or port?”

What should you do?

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Continue reading “How Do You Troubleshoot a kubectl Command That Returns “The connection to the server localhost:8080 was refused – did you specify the right host or port?” when using AWS and EKS?”