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Merge pull request #62 from erick0z/erick0z/image_size

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image-builder: Allow to specify root partition free space
This commit is contained in:
Jose Carlos Venegas Munoz
2018-02-15 21:41:21 -06:00
committed by GitHub
parent 9699fe43a7 ea4063095d
commit eb3712a075
1 changed files with 9 additions and 2 deletions
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11
image-builder/image_builder.sh
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@@ -57,6 +57,7 @@ Options:
-h Show this help -h Show this help
-o path to generate image file ENV: IMAGE -o path to generate image file ENV: IMAGE
-s Image size in MB ENV: IMG_SIZE -s Image size in MB ENV: IMG_SIZE
-r Free space of the root partition in MB ENV: ROOT_FREE_SPACE
Extra environment variables: Extra environment variables:
AGENT_BIN: use it to change the expected agent binary name AGENT_BIN: use it to change the expected agent binary name
@@ -79,11 +80,12 @@ MEM_BOUNDARY=128
MAX_ATTEMPTS=5 MAX_ATTEMPTS=5
ATTEMPT_NUM=0 ATTEMPT_NUM=0
while getopts "ho:s:f:" opt while getopts "ho:r:s:f:" opt
do do
case "$opt" in case "$opt" in
h) usage ;; h) usage ;;
o) IMAGE="${OPTARG}" ;; o) IMAGE="${OPTARG}" ;;
r) ROOT_FREE_SPACE="${OPTARG}" ;;
s) IMG_SIZE=${OPTARG} s) IMG_SIZE=${OPTARG}
if [ ${IMG_SIZE} -le 0 ]; then if [ ${IMG_SIZE} -le 0 ]; then
die "Image size has to be greater than 0 MB." die "Image size has to be greater than 0 MB."
@@ -162,6 +164,11 @@ calculate_img_size()
{ {
IMG_SIZE=${IMG_SIZE:-$MEM_BOUNDARY} IMG_SIZE=${IMG_SIZE:-$MEM_BOUNDARY}
align_memory align_memory
if [ -n "$ROOT_FREE_SPACE" ] && [ "$IMG_SIZE" -gt "$ROOTFS_SIZE" ]; then
info "Ensure that root partition has at least ${ROOT_FREE_SPACE}MB of free space"
IMG_SIZE=$(($IMG_SIZE + $ROOT_FREE_SPACE))
fi
} }
# Cleanup # Cleanup
@@ -244,4 +251,4 @@ OK "rootfs copied"
cleanup cleanup
info "Image created. Size: ${IMG_SIZE}MB." info "Image created. Virtual size: ${IMG_SIZE}MB."