Use curl instead of kubectl

kubernetes_apis_with_curl.sh

#!/bin/bash

###
# download yq
#
set -ex

# https://docs.github.com/en/rest/releases/releases?apiVersion=2022-11-28#get-the-latest-release
latest_tag=$(curl -sL -H "X-GitHub-Api-Version: 2022-11-28" https://api.github.com/repos/mikefarah/yq/releases/latest |jq -r .tag_name)

curl -fsSL https://github.com/mikefarah/yq/releases/download/${latest_tag}/yq_linux_amd64 -O

yq_linux_amd64_checksum="$(curl -fsSL https://github.com/mikefarah/yq/releases/download/${latest_tag}/checksums |grep "yq_linux_amd64 " |tr --squeeze-repeats [:space:] |cut -d' ' -f2- )"

grep "$(sha256sum yq_linux_amd64 |cut -d' ' -f1)" yq_linux_amd64_checksum || echo "WARNING: SHA256 not found!"

mv yq_linux_amd64 yq
chmod +x yq
sudo mv yq /usr/local/bin/yq

yq --version

###
# get certs from kubeconfig
#
# Input Args
CLUSTER_USER=$1
CLUSTER_NAME=$2

KEY_DATA="$( yq eval '.users[] | select(.name == env(CLUSTER_USER)) | .user.client-key-data' $KUBECONFIG |base64 -d --wrap=76)"
CERT_DATA="$(yq eval '.users[] | select(.name == env(CLUSTER_USER)) | .user.client-certificate-data' $KUBECONFIG | base64 -d --wrap=76)"
CA_DATA="$( yq eval '.clusters[] | select(.name == env(CLUSTER_NAME)) | .cluster.certificate-authority-data' $KUBECONFIG | base64 -d --wrap=76)"

SERVER="$(yq eval '.clusters[] | select(.name == env(CLUSTER_NAME)) | .cluster.server' $KUBECONFIG)"

#
# deploy pod
#
#curl -X POST \
#  --cacert <(echo "${CA_DATA}") \
#  --cert <(echo "${CERT_DATA}") \
#  --key <(echo "${KEY_DATA}") \
#  -H "Content-Type: application/json" \
#  -H "Accept: application/json" \
#  --data-binary @<(yq eval -j pod.yaml) \
#  ${SERVER}/api/v1/namespaces/default/pods?fieldManager=kubectl-create

# See resources names
curl \
  --cacert <(echo "${CA_DATA}") \
  --cert <(echo "${CERT_DATA}") \
  --key <(echo "${KEY_DATA}") \
  -H "Accept: application/json" \
  ${SERVER}/api/v1 |jq .resources[].name
 
#
# list pods
#
curl \
  --cacert <(echo "${CA_DATA}") \
  --cert <(echo "${CERT_DATA}") \
  --key <(echo "${KEY_DATA}") \
  -H "Accept: application/json" \
  ${SERVER}/api/v1/namespaces/default/pods?limit=5

#
# delete pod
#

curl -X DELETE \
  --cacert <(echo "${CA_DATA}") \
  --cert <(echo "${CERT_DATA}") \
  --key <(echo "${KEY_DATA}") \
  -H "Accept: application/json" \
  -H "Content-Type: application/json" \
  ${SERVER}/api/v1/namespaces/default/pods/test_pod