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Cleanup default Functions & Tasks while uninstall+ refactor installer script #4

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merged 9 commits into from
Jul 4, 2019
Merged

Cleanup default Functions & Tasks while uninstall+ refactor installer script #4

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2d87f9b
Add update-status function in chart and script
Jun 12, 2019
6b6b042
download helm if not present
Jun 12, 2019
ea201f3
updated script
Jun 20, 2019
eee9587
delete update-status function
Jul 1, 2019
e74b4e8
Cleanup default Function & Tasks while uninstall
Jul 1, 2019
bd56e6f
Use full resource name for function & task
Jul 4, 2019
482370a
use full name of task and function in chart cleaner
Jul 4, 2019
de59ec3
Remove armv5 and armv6 + add reference to OS detection code.
Jul 4, 2019
371bedc
Update stash.sh
tamalsaha Jul 4, 2019
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16 changes: 16 additions & 0 deletions chart/stash/templates/update-status-function.yaml
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Original file line number Diff line number Diff line change
@@ -0,0 +1,16 @@
apiVersion: stash.appscode.com/v1beta1
kind: Function
metadata:
name: update-status
labels:
{{- include "stash.labels" . | nindent 4 }}
spec:
image: {{ .Values.operator.registry }}/{{ .Values.operator.repository }}:{{ .Values.operator.tag }}
args:
- update-status
- --namespace=${NAMESPACE:=default}
- --repository=${REPOSITORY_NAME:=}
- --backup-session=${BACKUP_SESSION:=}
- --restore-session=${RESTORE_SESSION:=}
- --output-dir=${outputDir:=}
- --enable-status-subresource=${ENABLE_STATUS_SUBRESOURCE:=false}
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154 changes: 123 additions & 31 deletions deploy/stash.sh
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Expand Up @@ -13,9 +13,64 @@ kubectl config current-context || {
}
echo ""

OS=""
ARCH=""
DOWNLOAD_URL=""
DOWNLOAD_DIR=""
TEMP_DIRS=()
ONESSL=""

HELM=""
CHART_NAME="stash"
CHART_LOCATION="chart"

# http://redsymbol.net/articles/bash-exit-traps/
function cleanup() {
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rm -rf $ONESSL ca.crt ca.key server.crt server.key
rm -rf ca.crt ca.key server.crt server.key
# remove temporary directories
for dir in "${TEMP_DIRS[@]}"; do
rm -rf "${dir}"
done
}

# detect operating system
function detectOS() {
OS=$(echo `uname`|tr '[:upper:]' '[:lower:]')

case "$OS" in
# Minimalist GNU for Windows
cygwin* | mingw* | msys*) OS='windows';;
esac
}

# detect machine architecture
function detectArch() {
ARCH=$(uname -m)
case $ARCH in
armv5*) ARCH="armv5";;
armv6*) ARCH="armv6";;
armv7*) ARCH="arm";;
aarch64) ARCH="arm64";;
x86) ARCH="386";;
x86_64) ARCH="amd64";;
i686) ARCH="386";;
i386) ARCH="386";;
esac
}

detectOS
detectArch

# download file pointed by DOWNLOAD_URL variable
# store download file to the directory pointed by DOWNLOAD_DIR variable
# you have to sent the output file name as argument. i.e. downloadFile myfile.tar.gz
function downloadFile() {
if curl --output /dev/null --silent --head --fail "$DOWNLOAD_URL"; then
curl -fsSL ${DOWNLOAD_URL} -o $DOWNLOAD_DIR/$1
else
echo "File does not exist"
exit 1
fi
}

export APPSCODE_ENV=${APPSCODE_ENV:-prod}
Expand All @@ -35,37 +90,26 @@ onessl_found() {
return 1
}

# download onessl if it does not exist
onessl_found || {
echo "Downloading onessl ..."
if [[ "$(uname -m)" == "aarch64" ]]; then
curl -fsSL -o onessl https://github.com/kubepack/onessl/releases/download/0.10.0/onessl-linux-arm64
chmod +x onessl
export ONESSL=./onessl
else
# ref: https://stackoverflow.com/a/27776822/244009
case "$(uname -s)" in
Darwin)
curl -fsSL -o onessl https://github.com/kubepack/onessl/releases/download/0.10.0/onessl-darwin-amd64
chmod +x onessl
export ONESSL=./onessl
;;

Linux)
curl -fsSL -o onessl https://github.com/kubepack/onessl/releases/download/0.10.0/onessl-linux-amd64
chmod +x onessl
export ONESSL=./onessl
;;

CYGWIN* | MINGW* | MSYS*)
curl -fsSL -o onessl.exe https://github.com/kubepack/onessl/releases/download/0.10.0/onessl-windows-amd64.exe
chmod +x onessl.exe
export ONESSL=./onessl.exe
;;
*)
echo 'other OS'
;;
esac
fi

ARTIFACT="https://github.com/kubepack/onessl/releases/download/0.10.0"
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Why are we changing this?

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  1. If we need to change URL we won't need to change for every OS.
  2. Make os detection/download part reusable. If we need to download another binary in future, we would be able to reuse .
  3. Support more architecture. In future, we may need to support ARM.

ONESSL_BIN=onessl-${OS}-${ARCH}
case "$OS" in
cygwin* | mingw* | msys*)
ONESSL_BIN=${ONESSL_BIN}.exe
;;
esac

DOWNLOAD_URL=${ARTIFACT}/${ONESSL_BIN}
DOWNLOAD_DIR="$(mktemp -dt onessl-XXXXXX)"
TEMP_DIRS+=($DOWNLOAD_DIR) # store DOWNLOAD_DIR to cleanup later

downloadFile $ONESSL_BIN # downloaded file name will be saved as the value of ONESSL_BIN variable

export ONESSL=${DOWNLOAD_DIR}/${ONESSL_BIN}
chmod +x $ONESSL
}

# ref: https://stackoverflow.com/a/7069755/244009
Expand Down Expand Up @@ -311,7 +355,8 @@ if [ "$STASH_UNINSTALL" -eq 1 ]; then
kubectl delete secret stash-apiserver-cert --namespace $PROMETHEUS_NAMESPACE || true
# delete psp resources
kubectl delete psp stash-operator-psp stash-backup-job stash-backupsession-cron stash-restore-job || true

# delete update-status function
kubectl delete function update-status || true
echo "waiting for stash operator pod to stop running"
for (( ; ; )); do
pods=($(kubectl get pods --namespace $STASH_NAMESPACE -l app=stash -o jsonpath='{range .items[*]}{.metadata.name} {end}'))
Expand Down Expand Up @@ -472,6 +517,53 @@ for crd in "${non_namespaced_crds[@]}"; do
}
done

# Install "update-status" Function.
# we only need to resolve the variables of 'spec.image' part and keep others.
# we can't use onessl to resolve the variables as it will try to resolve all the variables.
# we will use helm to generate yaml from template then apply it.
if [ -x "$(command -v helm)" ]; then
export HELM=helm
else
echo "Helm is not installed!. Downloading Helm."
ARTIFACT="https://get.helm.sh"
HELM_VERSION="v2.14.1"
HELM_BIN=helm
HELM_DIST=${HELM_BIN}-${HELM_VERSION}-${OS}-${ARCH}.tar.gz

case "$OS" in
cygwin* | mingw* | msys*)
HELM_BIN=${HELM_BIN}.exe
;;
esac

DOWNLOAD_URL=${ARTIFACT}/${HELM_DIST}
DOWNLOAD_DIR="$(mktemp -dt helm-XXXXXX)"
TEMP_DIRS+=($DOWNLOAD_DIR)

downloadFile $HELM_DIST

tar xf ${DOWNLOAD_DIR}/${HELM_DIST} -C ${DOWNLOAD_DIR}
export HELM=${DOWNLOAD_DIR}/${OS}-${ARCH}/${HELM_BIN}
chmod +x $HELM
fi

if [[ "$APPSCODE_ENV" == "dev" ]]; then
CHART_LOCATION="chart"
else
# download chart from remove repository and extract into a temporary directory
CHART_LOCATION="$(mktemp -dt appscode-XXXXXX)"
TEMP_DIRS+=(${CHART_LOCATION})
TEMP_INSTALLER_REPO="${CHART_NAME}-installer"
$HELM repo add "${TEMP_INSTALLER_REPO}" "https://charts.appscode.com/stable"
$HELM fetch --untar --untardir ${CHART_LOCATION} "${TEMP_INSTALLER_REPO}/${CHART_NAME}"
$HELM repo remove "${TEMP_INSTALLER_REPO}"
fi

$HELM template ${CHART_LOCATION}/${CHART_NAME} -x templates/update-status-function.yaml \
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--set operator.registry=${STASH_DOCKER_REGISTRY} \
--set operator.tag=${STASH_IMAGE_TAG} \
| kubectl apply -f -

if [ "$STASH_ENABLE_VALIDATING_WEBHOOK" = true ]; then
echo "checking whether admission webhook(s) are activated or not"
active=$($ONESSL wait-until-has annotation \
Expand Down