108 lines
3.1 KiB
Bash
Executable File
108 lines
3.1 KiB
Bash
Executable File
#!/bin/bash
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SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
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SCDIR=$(realpath $SCDIR)
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PARENT=$(realpath $SCDIR/..)
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function max_replicas() {
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kubectl get horizontalrunnerautoscalers --output=json | jq '.items | map(select(.spec.scaleTargetRef.name == "runners-stream-ci")) | .[] | .spec.maxReplicas'
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}
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function min_replicas() {
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kubectl get horizontalrunnerautoscalers --output=json | jq '.items | map(select(.spec.scaleTargetRef.name == "runners-stream-ci")) | .[] | .spec.minReplicas'
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}
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function count_runners() {
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kubectl get rdeploy runners-stream-ci --output=json | jq '.spec.replicas'
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}
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function count_running() {
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kubectl get rdeploy | grep -F "runners-stream-ci" | awk '{print $4}'
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}
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if [ "$1" = "" ]; then
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echo "Expected number to decrease"
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exit 1
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fi
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CLUSTER_NAME=stream-apps-gh-runners
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echo "Checking stream-apps-gh-runners"
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DEC=$1
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MIN_RUNNERS=$2
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SCALE_MIN=$($SCDIR/determine-default.sh $CLUSTER_NAME "scale_down")
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SCALING=$($SCDIR/determine-default.sh $CLUSTER_NAME "runner_scaling")
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if [ "$SCALING" == "auto" ]; then
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MAX_RUNNERS=$(max_replicas)
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MAX_RUNNERS=$((MAX_RUNNERS - DEC))
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CURRENT=$(min_replicas)
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if [ "$MIN_RUNNERS" == "" ]; then
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MIN_RUNNERS=$((CURRENT - DEC))
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fi
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if ((MAX_RUNNERS < SCALE_MIN)); then
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MAX_RUNNERS=SCALE_MIN
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fi
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if ((MIN_RUNNERS < SCALE_MIN)); then
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MIN_RUNNERS=SCALE_MIN
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fi
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else
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CURRENT=$(count_runners)
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echo "There are now $CURRENT runners"
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TARGET=$((CURRENT - DEC))
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fi
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if [ "$MIN_RUNNERS" != "" ]; then
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if ((TARGET < MIN_RUNNERS)); then
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TARGET=$MIN_RUNNERS
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fi
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fi
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if ((TARGET < SCALE_MIN)); then
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TARGET=SCALE_MIN
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fi
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if [ "$OS" = "" ]; then
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OS=$(uname)
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fi
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OS="${OS//./L&}" #lowercase
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if [ "$ARCH" = "" ]; then
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ARCH=$(uname -i)
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fi
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ARCH="${ARCH//./L&}" #lowercase
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case $ARCH in
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"x86_64")
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ARCH=amd64
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;;
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"arm" | "arm64" | "armv8" | "aarch64")
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ARCH=arm64
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;;
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*)
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echo "Architecture:$ARCH may not be supported by summerwind/actions-runner"
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;;
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esac
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# the specific template
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cp $SCDIR/k8s/runners-stream-ci-${SCALING}-template.yaml runners-stream-ci.yaml
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ARC_RUNNER_VER=$($SCDIR/determine-default.sh stream-apps-gh-runners "actions_runner_version")
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if [ "$ARC_RUNNER_VER" == "" ]; then
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ARC_RUNNER_VER=latest
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fi
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sed -i 's/tag-placeholder/'"$ARC_RUNNER_VER"'/g' runners-stream-ci.yaml
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if [ "$SCALING" == "auto" ]; then
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MAX_RUNNERS=$((MAX_RUNNERS - DEC))
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echo "Runners: changing scaling min: $MIN_RUNNERS, max: $MAX_RUNNERS"
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sed -i 's/max-replicas-placeholder/'"$MAX_RUNNERS"'/g' runners-stream-ci.yaml
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sed -i 's/min-replicas-placeholder/'"$MIN_RUNNERS"'/g' runners-stream-ci.yaml
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else
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echo "Runners:$CURRENT decrease by $DEC to $TARGET"
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sed -i 's/replicas-placeholder/'"$TARGET"'/g' runners-stream-ci.yaml
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fi
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cmp --silent "$SCDIR/k8s/runners-stream-ci-${SCALING}-template.yaml" runners-stream-ci.yaml
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RC=$?
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if ((RC != 0)); then
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kubectl apply -f runners-stream-ci.yaml
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echo "Runners: changed to $RUNNERS"
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if [ "$SCALING" != "auto" ]; then
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$SCDIR/wait-k8s.sh 1 --for=condition=ready --timeout=1m pod -l runner-deployment-name=runners-stream-ci --all-namespaces=true
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fi
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else
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echo "Runners: unchanged"
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fi
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rm -f runners-stream-ci.yaml
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$SCDIR/check-runners.sh
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