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flatcar-install: add option to download ignition file with url #137

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flatcar-install: add option to download ignition file with url #137

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62 changes: 37 additions & 25 deletions bin/flatcar-install
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Original file line number Diff line number Diff line change
Expand Up @@ -86,29 +86,30 @@ fi

USAGE="Usage: $0 {{-d <device>}|-s} [options]
Options:
-d DEVICE Install Flatcar Container Linux to the given device.
-D Download a Flatcar Container Linux image to the current directory, without installing it
-s EXPERIMENTAL: Install Flatcar Container Linux to the smallest unmounted disk found
(min. size 10GB). It is recommended to use it with -e or -I to filter the
block devices by their major numbers. E.g., -e 7 to exclude loop devices
or -I 8,259 for certain disk types. Read more about the numbers here:
https://www.kernel.org/doc/Documentation/admin-guide/devices.txt.
-V VERSION Version to install (e.g. current, or current-2022 for the LTS 2022 stream) [default: ${VERSION_ID}].
-B BOARD Flatcar Container Linux board to use [default: ${BOARD}].
-C CHANNEL Release channel to use (e.g. beta) [default: ${CHANNEL_ID}].
-I|e <M,..> EXPERIMENTAL (used with -s): List of major device numbers to in-/exclude
when finding the smallest disk.
-o OEM OEM type to install (e.g. 'ami' or '' to force none), using flatcar_production_<OEM>_image.bin.bz2 [default: ${OEM_ID:-(none, i.e., the empty string)}].
-c CLOUD Insert a cloud-init config to be executed on boot.
-i IGNITION Insert an Ignition config to be executed on boot.
-b BASEURL URL to the image mirror (overrides BOARD and CHANNEL).
-k KEYFILE Override default GPG key for verifying image signature.
-f IMAGE Install unverified local image file to disk instead of fetching.
-n Copy generated network units to the root partition.
-u Create UEFI boot entry
-y Dry-run. Run some checks and print option settings.
-v Super verbose, for debugging.
-h This ;-).
-d DEVICE Install Flatcar Container Linux to the given device.
-D Download a Flatcar Container Linux image to the current directory, without installing it
-s EXPERIMENTAL: Install Flatcar Container Linux to the smallest unmounted disk found
(min. size 10GB). It is recommended to use it with -e or -I to filter the
block devices by their major numbers. E.g., -e 7 to exclude loop devices
or -I 8,259 for certain disk types. Read more about the numbers here:
https://www.kernel.org/doc/Documentation/admin-guide/devices.txt.
-V VERSION Version to install (e.g. current, or current-2022 for the LTS 2022 stream) [default: ${VERSION_ID}].
-B BOARD Flatcar Container Linux board to use [default: ${BOARD}].
-C CHANNEL Release channel to use (e.g. beta) [default: ${CHANNEL_ID}].
-I|e <M,..> EXPERIMENTAL (used with -s): List of major device numbers to in-/exclude
when finding the smallest disk.
-o OEM OEM type to install (e.g. 'ami' or '' to force none), using flatcar_production_<OEM>_image.bin.bz2 [default: ${OEM_ID:-(none, i.e., the empty string)}].
-c CLOUD Insert a cloud-init config to be executed on boot.
-i IGNITION Insert an Ignition config to be executed on boot.
-U IGNITIONURL Download an Ignition config to be executed on boot.
-b BASEURL URL to the image mirror (overrides BOARD and CHANNEL).
-k KEYFILE Override default GPG key for verifying image signature.
-f IMAGE Install unverified local image file to disk instead of fetching.
-n Copy generated network units to the root partition.
-u Create UEFI boot entry
-y Dry-run. Run some checks and print option settings.
-v Super verbose, for debugging.
-h This ;-).

This tool installs Flatcar Container Linux on a block device. If you PXE booted
Flatcar Container Linux on a machine then use this tool to make a permanent install.
Expand Down Expand Up @@ -501,13 +502,14 @@ WXo7A5nj0plrH9Jn23wzGSTpf0QCApG55iOsKtrnvWTEGihjLFD9ccnMHb9AGQmG
DEVICE=
CLOUDINIT=
IMAGE_FILE=
IGNITION_URL=
KEYFILE=
VERSION_SUMMARY='Flatcar Container Linux'
CREATE_UEFI=

WGET_ARGS="--tries 10 --timeout=20 --retry-connrefused"

while getopts "V:B:C:DI:d:o:c:e:i:t:b:k:f:nusyvh" OPTION
while getopts "V:B:C:DI:d:o:c:e:i:U:t:b:k:f:nusyvh" OPTION
do
case $OPTION in
V) VERSION_ID="$OPTARG"; VERSION_SPECIFIED=1 ;;
Expand All @@ -520,6 +522,7 @@ do
c) CLOUDINIT="$OPTARG" ;;
e) EXCLUDE_MAJOR="-e $OPTARG" ;;
i) IGNITION="$OPTARG" ;;
U) IGNITION_URL="$OPTARG" ;;
t) ;; # compatibility option; previously set TMPDIR
b) BASE_URL="${OPTARG%/}" ;;
k) KEYFILE="$OPTARG" ;;
Expand All @@ -543,6 +546,7 @@ Settings:
OEM: ${OEM_ID:-(none)}
CLOUD: ${CLOUDINIT:-(none)}
IGNITION: ${IGNITION:-(none)}
IGNITION_URL: ${IGNITION_URL:-(none)}
BASEURL: ${BASE_URL:-(none)}
KEYFILE: ${KEYFILE:-(none)}
IMAGE: ${IMAGE_FILE:-(none)}"
Expand Down Expand Up @@ -598,6 +602,14 @@ if [[ -z "${DOWNLOAD_ONLY}" ]]; then
exit 1
fi
fi

if [[ -n "${IGNITION_URL}" ]]; then
IGNITION=config.ign
if ! wget ${WGET_ARGS} --quiet -O ${IGNITION} "${IGNITION_URL}"; then
echo "$0: Ignition config url (${IGNITION_URL}) not found." >&2
exit 1
fi
fi
fi

if [[ -n "${DRY_RUN}" ]]; then
Expand Down Expand Up @@ -829,4 +841,4 @@ else
fi

rm -rf "${WORKDIR}"
trap - EXIT
trap - EXIT