Files
linuxkit/projects/kubernetes/boot.sh
Ian Campbell 1ec48df74b kubernetes: Use file based metadata
A bit easier for debugging/inspection etc.

Signed-off-by: Ian Campbell <ijc@docker.com>
2017-11-15 13:36:51 +00:00

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#!/bin/sh
set -e
: ${KUBE_MASTER_VCPUS:=2}
: ${KUBE_MASTER_MEM:=1024}
: ${KUBE_MASTER_DISK:=4G}
: ${KUBE_MASTER_UNTAINT:=n}
: ${KUBE_NODE_VCPUS:=2}
: ${KUBE_NODE_MEM:=4096}
: ${KUBE_NODE_DISK:=8G}
: ${KUBE_NETWORKING:=default}
: ${KUBE_RUN_ARGS:=}
: ${KUBE_EFI:=}
: ${KUBE_MAC:=}
: ${KUBE_CLEAR_STATE:=}
[ "$(uname -s)" = "Darwin" ] && KUBE_EFI=1
suffix=".iso"
[ -n "${KUBE_EFI}" ] && suffix="-efi.iso" && uefi="--uefi"
if [ $# -eq 0 ] ; then
img="kube-master"
# If $KUBE_MASTER_AUTOINIT is set, including if it is set to ""
# then we configure for auto init. If it is completely unset then
# we do not.
if [ -n "${KUBE_MASTER_AUTOINIT+x}" ] ; then
kubeadm_data="${kubeadm_data+$kubeadm_data, }\"init\": { \"content\": \"${KUBE_MASTER_AUTOINIT}\" }"
fi
if [ "${KUBE_MASTER_UNTAINT}" = "y" ] ; then
kubeadm_data="${kubeadm_data+$kubeadm_data, }\"untaint-master\": { \"content\": \"\" }"
fi
state="kube-master-state"
: ${KUBE_VCPUS:=$KUBE_MASTER_VCPUS}
: ${KUBE_MEM:=$KUBE_MASTER_MEM}
: ${KUBE_DISK:=$KUBE_MASTER_DISK}
elif [ $# -ge 1 ] ; then
case $1 in
''|*[!0-9]*)
echo "Node number must be a number"
exit 1
;;
0)
echo "Node number must be greater than 0"
exit 1
;;
*) ;;
esac
img="kube-node"
name="node-${1}"
shift
if [ $# -ge 1 ] ; then
kubeadm_data="\"join\": { \"content\": \"${*}\" }"
fi
state="kube-${name}-state"
: ${KUBE_VCPUS:=$KUBE_NODE_VCPUS}
: ${KUBE_MEM:=$KUBE_NODE_MEM}
: ${KUBE_DISK:=$KUBE_NODE_DISK}
else
echo "Usage:"
echo " - Boot master:"
echo " ${0}"
echo " - Boot node:"
echo " ${0} <node> <join_args>"
exit 1
fi
set -x
if [ -n "${KUBE_CLEAR_STATE}" ] ; then
rm -rf "${state}"
mkdir "${state}"
if [ -n "${KUBE_MAC}" ] ; then
echo -n "${KUBE_MAC}" > "${state}"/mac-addr
fi
fi
touch $state/metadata.json
if [ -n "${kubeadm_data}" ] ; then
echo "{ \"kubeadm\": { \"entries\": { ${kubeadm_data} } } }" > $state/metadata.json
fi
linuxkit run ${KUBE_RUN_ARGS} -networking ${KUBE_NETWORKING} -cpus ${KUBE_VCPUS} -mem ${KUBE_MEM} -state "${state}" -disk size=${KUBE_DISK} -data $state/metadata.json ${uefi} "${img}${suffix}"