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Pull all Rancher KubeConfig files locally
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| #/bin/bash | |
| # $1 rancher url (e.g. https://rancher.my-company.co.za) | |
| # $2 rancher bearer token | |
| # $3 overwrite current kubeconfig with resulting config (default false) | |
| if [[ -z "${1}" ]]; then | |
| echo "Must specify Rancher url to use as first argument (e.g. https://rancher.my-company.co.za). Exiting!" | |
| exit 1 | |
| else | |
| RANCHER_URL="${1}" | |
| fi | |
| if [[ -z "${2}" ]]; then | |
| echo "Must specify Rancher auth string to use as second argument (e.g. token-name:token-value). Exiting!" | |
| exit 1 | |
| else | |
| RANCHER_AUTH="${2}" | |
| fi | |
| if [[ -z "${3}" ]]; then | |
| OVERWRITE_CURRENT_KUBECONFIG=false | |
| else | |
| OVERWRITE_CURRENT_KUBECONFIG=${3} | |
| fi | |
| rm -rf /tmp/kubeconfigs || true | |
| mkdir -p /tmp/kubeconfigs | |
| echo "Getting all available clusters on provided Rancher instance" | |
| CLUSTERS=$(curl -u "${RANCHER_AUTH}" \ | |
| -s \ | |
| -X GET \ | |
| -H 'Accept: application/json' \ | |
| -H 'Content-Type: application/json' \ | |
| "${RANCHER_URL}/v3/clusters" | jq -r '.data[] | "\(.id);\(.appliedSpec.displayName)"') | |
| for CLUSTER_DETAILS_RAW in $CLUSTERS; do | |
| CLUSTER_DETAILS=(${CLUSTER_DETAILS_RAW//;/ } ) | |
| if [ "${CLUSTER_DETAILS[0]}" != "local" ] | |
| then | |
| if grep -q "name: ${CLUSTER_DETAILS[1]}" ~/.kube/config; then | |
| echo "KubeConfig for cluster '${CLUSTER_DETAILS[1]}' (${CLUSTER_DETAILS[0]}) already exists locally. Skipping!" | |
| else | |
| echo "Generating KubeConfig for cluster '${CLUSTER_DETAILS[1]}' (${CLUSTER_DETAILS[0]})..." | |
| curl -u "${RANCHER_AUTH}" \ | |
| -s \ | |
| -X POST \ | |
| -H 'Accept: application/json' \ | |
| -H 'Content-Type: application/json' \ | |
| "${RANCHER_URL}/v3/clusters/${CLUSTER_DETAILS[0]}?action=generateKubeconfig" | jq .config -r > /tmp/kubeconfigs/${CLUSTER_DETAILS[1]}-kubeconfig.yaml | |
| KUBE_CONFIG_STRING=${KUBE_CONFIG_STRING}/tmp/kubeconfigs/${CLUSTER_DETAILS[1]}-kubeconfig.yaml: | |
| fi | |
| fi | |
| done | |
| echo "Creating merged KubeConfig file..." | |
| HOME_DIR=$(cd ~ && pwd) | |
| KUBECONFIG="${KUBE_CONFIG_STRING}${HOME_DIR}/.kube/config" kubectl config view --flatten > merged-kubconfig.yaml | |
| if [ "$OVERWRITE_CURRENT_KUBECONFIG" = "true" ] | |
| then | |
| cp ~/.kube/config ~/.kube/config.$(date +%s).bkp | |
| mv merged-kubconfig.yaml ~/.kube/config | |
| echo "Merged KubeConfig file generated and replaced default kubeconfig" | |
| else | |
| echo "Merged KubeConfig file generated: $(pwd)/merged-kubconfig.yaml" | |
| fi |
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