mirror of
https://gitlab.alpinelinux.org/alpine/cloud/tiny-cloud.git
synced 2025-12-15 11:22:43 +03:00
82 lines
2.3 KiB
Bash
82 lines
2.3 KiB
Bash
#!/sbin/openrc-run
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# vim:set ft=bash:
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description="Provides EC2 cloud bootstrap"
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# override in /etc/conf.d/tiny-ec2-bootstrap
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EC2_USER=${EC2_USER:-alpine}
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depend() {
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need net
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provide cloud-final
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}
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_get_metadata() {
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local uri="$1"
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wget -qO - "http://169.254.169.254/latest/$uri" 2>/dev/null
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}
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_update_hostname() {
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local ec2_fqdn="$(_get_metadata meta-data/hostname)"
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local short_hostname="${ec2_fqdn%%\.*}"
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echo "$short_hostname" > /etc/hostname
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hostname -F /etc/hostname
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echo -e "127.0.1.1\t$ec2_fqdn $short_hostname" >> /etc/hosts
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}
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_set_ssh_keys() {
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local user="$1"
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local group="$(getent passwd $user | cut -d: -f4)"
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local ssh_dir="$(getent passwd $user | cut -d: -f6)/.ssh"
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local keys_file="$ssh_dir/authorized_keys"
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if [ ! -d "$ssh_dir" ]; then
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mkdir -p "$ssh_dir"
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chmod 755 "$ssh_dir"
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fi
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[ -f "$keys_file" ] && rm "$keys_file"
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touch "$keys_file"
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chmod 600 "$keys_file"
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chown -R $user:$group "$ssh_dir"
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for key in "$(_get_metadata meta-data/public-keys/)"; do
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echo $(_get_metadata "meta-data/public-keys/${key%=*}/openssh-key/") >> "$keys_file"
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done
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}
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_run_userdata() {
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user_data=$(_get_metadata user-data)
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if echo $user_data | grep '^#!/' 2>&1 >/dev/null; then
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echo "$user_data" > /var/lib/cloud/user-data.sh
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chmod +x /var/lib/cloud/user-data.sh
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/var/lib/cloud/user-data.sh 2>&1 | tee /var/log/cloud-bootstrap.log
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echo "User Data Script Exit Status: $?"
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fi
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}
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_resize_root_partition() {
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resize2fs $(mountpoint -n / | cut -d' ' -f1)
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}
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_disable_password() {
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echo "$1:*" | chpasswd -e
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}
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start() {
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# Don't bootstrap if the host has already been bootstrapped
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[ -f "/var/lib/cloud/.bootstrap-complete" ] && return 0
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[ -d "/var/lib/cloud" ] || mkdir -p /var/lib/cloud
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ebegin "Disabling root password"; _disable_password root; eend $?
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ebegin "Disabling $EC2_USER password"; _disable_password "$EC2_USER"; eend $?
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ebegin "Resizing root partition"; _resize_root_partition; eend $?
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ebegin "Setting ec2 hostname"; _update_hostname; eend $?
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ebegin "Setting ec2 user ssh keys"; _set_ssh_keys "$EC2_USER"; eend $?
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ebegin "Running ec2 user data script"; _run_userdata; eend $?
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touch "/var/lib/cloud/.bootstrap-complete"
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}
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