91 lines
2.8 KiB
Bash
91 lines
2.8 KiB
Bash
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#!/bin/bash
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# Copyright 2014 The Kubernetes Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# loadedImageFlags is a bit-flag to track which docker images loaded successfully.
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function load-docker-images() {
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let loadedImageFlags=0
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while true; do
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restart_docker=false
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if which docker 1>/dev/null 2>&1; then
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timeout 120 docker load -i /srv/salt/kube-bins/kube-apiserver.tar 1>/dev/null 2>&1
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rc=$?
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if [[ $rc == 0 ]]; then
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let loadedImageFlags="$loadedImageFlags|1"
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elif [[ $rc == 124 ]]; then
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restart_docker=true
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fi
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timeout 120 docker load -i /srv/salt/kube-bins/kube-scheduler.tar 1>/dev/null 2>&1
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rc=$?
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if [[ $rc == 0 ]]; then
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let loadedImageFlags="$loadedImageFlags|2"
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elif [[ $rc == 124 ]]; then
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restart_docker=true
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fi
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timeout 120 docker load -i /srv/salt/kube-bins/kube-controller-manager.tar 1>/dev/null 2>&1
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rc=$?
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if [[ $rc == 0 ]]; then
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let loadedImageFlags="$loadedImageFlags|4"
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elif [[ $rc == 124 ]]; then
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restart_docker=true
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fi
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fi
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# required docker images got installed. exit while loop.
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if [[ $loadedImageFlags == 7 ]]; then break; fi
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# Sometimes docker load hang, restart docker daemon resolve the issue
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if [[ $restart_docker ]]; then
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if ! service docker restart; then # Try systemctl if there's no service command.
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systemctl restart docker
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fi
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fi
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# sleep for 15 seconds before attempting to load docker images again
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sleep 15
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done
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}
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function convert-rkt-image() {
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(cd /tmp; ${DOCKER2ACI_BIN} $1)
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}
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function load-rkt-images() {
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convert-rkt-image /srv/salt/kube-bins/kube-apiserver.tar
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convert-rkt-image /srv/salt/kube-bins/kube-scheduler.tar
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convert-rkt-image /srv/salt/kube-bins/kube-controller-manager.tar
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# Currently, we can't run docker image tarballs directly,
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# So we use 'rkt fetch' to load the docker images into rkt image stores.
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# see https://github.com/coreos/rkt/issues/2392.
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${RKT_BIN} fetch /tmp/*.aci --insecure-options=image
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}
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if [[ "${KUBERNETES_CONTAINER_RUNTIME}" == "rkt" ]]; then
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load-rkt-images
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else
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load-docker-images
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fi
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# Now exit. After kube-push, salt will notice that the service is down and it
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# will start it and new docker images will be loaded.
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