mirror of
https://gitlab.alpinelinux.org/alpine/cloud/tiny-cloud.git
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Tiny cloud autodetect
This commit is contained in:
Natanael Copa
Jake Buchholz Göktürk
parent
4cf9c51317
commit
f6046351ca
@ -6,7 +6,7 @@ tiny-cloud - perform first-boot initialization for cloud instances
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# SYNOPSIS
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*tiny-cloud* [*-h*|*--help*] { *boot* | *early* | *main* | *final* | *-b*|*--bootstrap* { *complete* | *incomplete* | *status* } | *-E*|*--enable* | *-D*|*--disable* }
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*tiny-cloud* [*-h*|*--help*] { *boot* | *early* | *main* | *final* | *autodetect* | *-b*|*--bootstrap* { *complete* | *incomplete* | *status* } | *-E*|*--enable* | *-D*|*--disable* }
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# DESCRIPTION
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@ -61,6 +61,11 @@ been marked complete, later phase invocations exit without doing further work.
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Run finalization actions. By default this marks bootstrap complete after any
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additional configured final actions have succeeded.
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*autodetect*
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Run provider autodetection probes and print the detected provider name.
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This does not use the configured provider, kernel command line hints, or the
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cached autodetection result.
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# OPERATION
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When invoked with a phase argument, *tiny-cloud* first checks whether
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@ -47,31 +47,42 @@ line_kval() {
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cat "${2:--}" 2>/dev/null | xargs -n1 | grep "^$1=" | cut -d= -f2- | paste -sd' ' | tr "$3" ' '
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}
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if [ "$CLOUD" = "auto" ]; then
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cloud_alias() {
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case "$1" in
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ec2) echo aws;;
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gce) echo gcp;;
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nocloud-net) echo nocloud;;
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oracle) echo oci;;
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*) echo "$1";;
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esac
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}
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cloud_hint() {
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local F cloud
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# try kernel cmdline & DMI product serial
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for F in "$PROC/cmdline" "$SYS/class/dmi/id/product_serial"; do
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cloud=$(line_kval tinycloud "$F" : | line_kval cloud)
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[ -z "$cloud" ] && cloud=$(line_kval ds "$F" ';' | cut -d' ' -f1 | lower)
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[ -n "$cloud" ] && {
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cloud_alias "$cloud"
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return
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}
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done
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}
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cloud_autodetect() {
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for i in "$LIBDIR"/tiny-cloud/cloud/*/autodetect; do
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if [ -x "$i" ]; then
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"$i" || :
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fi
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done | sort -n | cut -d' ' -f2 | head -n 1
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}
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if [ "$CLOUD" = "auto" ] && [ -z "$TINY_CLOUD_NO_RESOLVE" ]; then
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# previously detected?
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CLOUD=$(cat "$TINY_CLOUD_VAR"/.autodetect 2>/dev/null) || {
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# try kernel cmdline & DMI product serial
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for F in "$PROC/cmdline" "$SYS/class/dmi/id/product_serial"; do
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CLOUD=$(line_kval tinycloud "$F" : | line_kval cloud)
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[ -z "$CLOUD" ] && CLOUD=$(line_kval ds "$F" ';' | cut -d' ' -f1 | lower)
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[ -n "$CLOUD" ] && break
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done
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if [ -n "$CLOUD" ]; then
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# convert cloud-init cloud names
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case "$CLOUD" in
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ec2) CLOUD=aws;;
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gce) CLOUD=gcp;;
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nocloud-net) CLOUD=nocloud;;
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oracle) CLOUD=oci;;
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esac
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else
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# try all the autodetects, sorted by confidence...
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CLOUD=$(
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for i in "$LIBDIR"/tiny-cloud/cloud/*/autodetect; do
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[ -x "$i" ] && "$i"
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done | sort -n | cut -d' ' -f2 | head -n 1
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)
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fi
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CLOUD=$(cloud_hint)
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[ -z "$CLOUD" ] && CLOUD=$(cloud_autodetect)
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if [ -z "$CLOUD" ] || [ ! -d "$LIBDIR/tiny-cloud/cloud/$CLOUD" ]; then
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log -t autodetect err "unable to determine cloud"
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CLOUD=unknown
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@ -7,11 +7,12 @@ set -e
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: "${PREFIX:=/usr}"
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: "${LIBDIR:=$PREFIX/lib}"
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[ "$1" = "autodetect" ] && TINY_CLOUD_NO_RESOLVE=1
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. "$LIBDIR/tiny-cloud/common"
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usage() {
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cat <<-EOF
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Usage: ${0##*/} [-h | --help] { boot | early | main | final | --bootstrap {complete|incomplete|status} | --enable | --disable }
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Usage: ${0##*/} [-h | --help] { boot | early | main | final | autodetect | --bootstrap {complete|incomplete|status} | --enable | --disable }
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EOF
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}
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@ -72,6 +73,14 @@ shift
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case "$phase" in
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boot|early|main|final) ;;
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autodetect)
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CLOUD=$(cloud_autodetect)
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if [ -z "$CLOUD" ] || [ ! -d "$LIBDIR/tiny-cloud/cloud/$CLOUD" ]; then
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echo unknown
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exit 1
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fi
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echo "$CLOUD"
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exit 0;;
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*) usage >&2; exit 1;;
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esac
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@ -26,6 +26,8 @@ init_tests \
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set_ssh_keys_gcp \
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userdata_type \
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run_userdata \
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autodetect_config_overrides_cmdline \
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autodetect_cache_overrides_cmdline \
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autodetect_aws_cmdline \
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autodetect_aws_nitro \
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autodetect_aws_xen \
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@ -38,6 +40,7 @@ init_tests \
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autodetect_nocloud_dmi \
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autodetect_nocloud_volume \
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autodetect_oci \
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autodetect_scaleway_cmdline \
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autodetect_scaleway \
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autodetect_unknown
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@ -351,6 +354,23 @@ autodetect_unknown_body() {
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sh -c ". \"$lib\"; echo \$CLOUD"
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}
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autodetect_config_overrides_cmdline_body() {
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mkdir -p proc
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echo "quiet ds=scaleway console=ttyS0" > proc/cmdline
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CLOUD=aws atf_check \
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-o match:"aws" \
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sh -c ". \"$lib\"; echo \$CLOUD"
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}
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autodetect_cache_overrides_cmdline_body() {
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mkdir -p proc var/lib/cloud
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echo aws > var/lib/cloud/.autodetect
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echo "quiet ds=scaleway console=ttyS0" > proc/cmdline
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atf_check \
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-o match:"aws" \
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sh -c ". \"$lib\"; echo \$CLOUD"
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}
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autodetect_aws_cmdline_body() {
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mkdir -p proc
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echo "quiet tinycloud=cloud=aws console=ttyS0" > proc/cmdline
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@ -466,6 +486,14 @@ autodetect_oci_body() {
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sh -c ". \"$lib\"; echo \$CLOUD"
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}
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autodetect_scaleway_cmdline_body() {
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mkdir -p proc
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echo "quiet ds=scaleway console=ttyS0" > proc/cmdline
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atf_check \
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-o match:"scaleway" \
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sh -c ". \"$lib\"; echo \$CLOUD"
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}
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autodetect_scaleway_body() {
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mkdir -p sys/class/dmi/id
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cat > sys/class/dmi/id/modalias <<-EOT
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@ -10,6 +10,8 @@ PROVIDERS="alpine aws azure digitalocean gcp incus hetzner nocloud oci scaleway"
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init_tests \
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tiny_cloud_help \
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tiny_cloud_autodetect \
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tiny_cloud_autodetect_unknown \
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tiny_cloud_disabled \
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no_metadata_boot \
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no_userdata_early \
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@ -28,6 +30,26 @@ tiny_cloud_help_body() {
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done
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}
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tiny_cloud_autodetect_body() {
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mkdir -p sys/class/dmi/id
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cat > sys/class/dmi/id/modalias <<-EOT
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dmi:bvnScaleway:bvrScaleway:bd10/22/2024:br1.0:svnScaleway:pnScaleway:pvr:rvnKVM:rnScaleway:rvr:cvnScaleway:ct1:cvr:sku:
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EOT
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atf_check -s exit:0 \
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-o match:"^scaleway$" \
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tiny-cloud autodetect
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}
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tiny_cloud_autodetect_unknown_body() {
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mkdir -p etc proc var/lib/cloud
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echo "CLOUD=auto" > etc/tiny-cloud.conf
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echo scaleway > var/lib/cloud/.autodetect
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echo "quiet ds=scaleway console=ttyS0" > proc/cmdline
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atf_check -s exit:1 \
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-o match:"^unknown$" \
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tiny-cloud autodetect
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}
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tiny_cloud_disabled_body() {
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mkdir -p etc
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touch etc/tiny-cloud.disabled
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