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Remove user-facing config of limits and requests

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This patch introduces reusable library charts that provide
backward-compatibility for users that specify their resources as
explicit requests and limits for cpu, however this input is processed so
that limits are set equal to requests except for CPU which only gets
requests. Users can now embrace the new form by directly specifying
resources in the first level of nesting (e.g. resources.cpu=100m instead
of .resources.requests.cpu=100m). The order of precedence is top-level,
then requests, then limits, ensuring that nothing will break in terms of
scheduling, however workloads that specified limits much higher than
requests might get a performance hit, now that they cannot use all this
excess capacity. This should only affect memory-hungry workloads in
low-contention environments.

Signed-off-by: Timofei Larkin <lllamnyp@gmail.com>
This commit is contained in:
Timofei Larkin
2025-05-12 18:52:32 +03:00
parent db34f31175
commit 9592f7fe46
20 changed files with 255 additions and 25 deletions
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8
hack/gen_versions_map.sh
View File

@@ -16,13 +16,15 @@ if [ ! -f "$file" ] || [ ! -s "$file" ]; then
exit 0
fi
miss_map=$(echo "$new_map" | awk 'NR==FNR { nm[$1 " " $2] = $3; next } { if (!($1 " " $2 in nm)) print $1, $2, $3}' - "$file")
miss_map=$(mktemp)
trap 'rm -f "$miss_map"' EXIT
echo -n "$new_map" | awk 'NR==FNR { nm[$1 " " $2] = $3; next } { if (!($1 " " $2 in nm)) print $1, $2, $3}' - "$file" > $miss_map
# search accross all tags sorted by version
search_commits=$(git ls-remote --tags origin | awk -F/ '$3 ~ /v[0-9]+.[0-9]+.[0-9]+/ {print}' | sort -k2,2 -rV | awk '{print $1}')
resolved_miss_map=$(
echo "$miss_map" | while read -r chart version commit; do
while read -r chart version commit; do
# if version is found in HEAD, it's HEAD
if [ "$(awk '$1 == "version:" {print $2}' ./${chart}/Chart.yaml)" = "${version}" ]; then
echo "$chart $version HEAD"
@@ -56,7 +58,7 @@ resolved_miss_map=$(
fi
echo "$chart $version $found_tag"
done
done < $miss_map
)
printf "%s\n" "$new_map" "$resolved_miss_map" | sort -k1,1 -k2,2 -V | awk '$1' > "$file"

65
hack/package_chart.sh Executable file
View File

@@ -0,0 +1,65 @@
#!/bin/sh
set -e
usage() {
printf "%s\n" "Usage:" >&2 ;
printf -- "%s\n" '---' >&2 ;
printf "%s %s\n" "$0" "INPUT_DIR OUTPUT_DIR TMP_DIR [DEPENDENCY_DIR]" >&2 ;
printf -- "%s\n" '---' >&2 ;
printf "%s\n" "Takes a helm repository from INPUT_DIR, with an optional library repository in" >&2 ;
printf "%s\n" "DEPENDENCY_DIR, prepares a view of the git archive at select points in history" >&2 ;
printf "%s\n" "in TMP_DIR and packages helm charts, outputting the tarballs to OUTPUT_DIR" >&2 ;
}
if [ "x$(basename $PWD)" != "xpackages" ]
then
echo "Error: This script must run from the ./packages/ directory" >&2
echo >&2
usage
exit 1
fi
if [ "x$#" != "x3" ] && [ "x$#" != "x4" ]
then
echo "Error: This script takes 3 or 4 arguments" >&2
echo "Got $# arguments:" "$@" >&2
echo >&2
usage
exit 1
fi
input_dir=$1
output_dir=$2
tmp_dir=$3
if [ "x$#" = "x4" ]
then
dependency_dir=$4
fi
rm -rf "${output_dir:?}"
mkdir -p "${output_dir}"
while read package _ commit
do
# this lets devs build the packages from a dirty repo for quick local testing
if [ "x$commit" = "xHEAD" ]
then
helm package "${input_dir}/${package}" -d "${output_dir}"
continue
fi
git archive --format tar "${commit}" "${input_dir}/${package}" | tar -xf- -C "${tmp_dir}/"
# the library chart is not present in older commits and git archive doesn't fail gracefully if the path is not found
if [ "x${dependency_dir}" != "x" ] && git ls-tree --name-only "${commit}" "${dependency_dir}" | grep -qx "${dependency_dir}"
then
git archive --format tar "${commit}" "${dependency_dir}" | tar -xf- -C "${tmp_dir}/"
fi
helm package "${tmp_dir}/${input_dir}/${package}" -d "${output_dir}"
rm -rf "${tmp_dir:?}/${input_dir:?}/${package:?}"
if [ "x${dependency_dir}" != "x" ]
then
rm -rf "${tmp_dir:?}/${dependency_dir:?}"
fi
done < "${input_dir}/versions_map"
helm repo index "${output_dir}"