Fix formatting
This commit is contained in:
Sergey Dudoladov
parent
258f4a848f
commit
153ebd335f
|
|
@ -21,23 +21,23 @@ readonly OPERATOR_PORT="8080"
|
|||
# so the script retries actions until all the resources become available
|
||||
function retry(){
|
||||
|
||||
# errexit may break "eval $cmd", so we disable it temporarily
|
||||
set +o errexit
|
||||
|
||||
local -r cmd="$1"
|
||||
local -r cmd_to_retry="$1"
|
||||
local -r retry_msg="$2"
|
||||
|
||||
# errexit may break "eval $cmd_to_retry", so we disable it temporarily
|
||||
set +o errexit
|
||||
|
||||
# times out after 1 minute
|
||||
for i in {1..20}; do
|
||||
if eval "$cmd"; then
|
||||
set -o errexit # enable again
|
||||
if eval "$cmd_to_retry"; then
|
||||
set -o errexit # enable again
|
||||
return 0
|
||||
fi
|
||||
echo "$retry_msg"
|
||||
echo "$retry_msg"
|
||||
sleep 3
|
||||
done
|
||||
|
||||
>2& echo "The command $cmd timed out"
|
||||
>2& echo "The command $cmd_to_retry timed out"
|
||||
return 1
|
||||
}
|
||||
|
||||
|
|
@ -55,27 +55,27 @@ function clean_up(){
|
|||
status=$(minikube status --format "{{.MinikubeStatus}}" || true)
|
||||
|
||||
if [[ "$status" = "Running" ]] || [[ "$status" = "Stopped" ]]; then
|
||||
echo "Delete the existing local cluster so that we can cleanly apply resources from scratch..."
|
||||
minikube delete
|
||||
echo "Delete the existing local cluster so that we can cleanly apply resources from scratch..."
|
||||
minikube delete
|
||||
fi
|
||||
|
||||
if [[ -e "$PATH_TO_LOCAL_OPERATOR_MANIFEST" ]]; then
|
||||
rm --verbose "$PATH_TO_LOCAL_OPERATOR_MANIFEST"
|
||||
rm --verbose "$PATH_TO_LOCAL_OPERATOR_MANIFEST"
|
||||
fi
|
||||
|
||||
# the kubectl process does the port-forwarding between operator and local ports
|
||||
# we restart the process to bind to the same port again (see end of script)
|
||||
if [[ -e "$PATH_TO_PORT_FORWARED_KUBECTL_PID" ]]; then
|
||||
|
||||
local pid
|
||||
pid=$(cat "$PATH_TO_PORT_FORWARED_KUBECTL_PID")
|
||||
local pid
|
||||
pid=$(cat "$PATH_TO_PORT_FORWARED_KUBECTL_PID")
|
||||
|
||||
# the process dies if a minikube stops between two invocations of the script
|
||||
if ps --pid "$pid" > /dev/null 2>&1; then
|
||||
echo "Kill the kubectl process responsible for port forwarding for minikube so that we can re-use the same ports for forwarding later..."
|
||||
kill "$pid"
|
||||
fi
|
||||
rm --verbose /tmp/kubectl-port-forward.pid
|
||||
# the process dies if a minikube stops between two invocations of the script
|
||||
if ps --pid "$pid" > /dev/null 2>&1; then
|
||||
echo "Kill the kubectl process responsible for port forwarding for minikube so that we can re-use the same ports for forwarding later..."
|
||||
kill "$pid"
|
||||
fi
|
||||
rm --verbose /tmp/kubectl-port-forward.pid
|
||||
|
||||
fi
|
||||
}
|
||||
|
|
@ -143,13 +143,13 @@ function start_operator(){
|
|||
local file
|
||||
for file in "configmap.yaml" "serviceaccount.yaml"
|
||||
do
|
||||
retry "kubectl create -f manifests/\"$file\"" "attempt to create $file resource"
|
||||
retry "kubectl create -f manifests/\"$file\"" "attempt to create $file resource"
|
||||
done
|
||||
|
||||
if [[ "$should_build_operator" = true ]]; then
|
||||
deploy_self_built_image
|
||||
if [[ "$should_build_custom_operator" = true ]]; then # set in main()
|
||||
deploy_self_built_image
|
||||
else
|
||||
retry "kubectl create -f manifests/postgres-operator.yaml" "attempt to create /postgres-operator.yaml resource"
|
||||
retry "kubectl create -f manifests/postgres-operator.yaml" "attempt to create /postgres-operator.yaml resource"
|
||||
fi
|
||||
|
||||
local -r msg="Wait for the postgresql custom resource definition to register..."
|
||||
|
|
@ -162,7 +162,7 @@ function start_operator(){
|
|||
|
||||
function forward_ports(){
|
||||
|
||||
echo "==== FORWARD OPERATOR PORT $OPERATOR_PORT TO LOCAL PORT $LOCAL_PORT ===="
|
||||
echo "==== FORWARD OPERATOR PORT $OPERATOR_PORT TO LOCAL PORT $LOCAL_PORT ===="
|
||||
|
||||
local operator_pod
|
||||
operator_pod=$(kubectl get pod -l name=postgres-operator -o jsonpath={.items..metadata.name})
|
||||
|
|
@ -174,59 +174,56 @@ function forward_ports(){
|
|||
pgrep --newest "kubectl" > "$PATH_TO_PORT_FORWARED_KUBECTL_PID"
|
||||
}
|
||||
|
||||
|
||||
function check_health(){
|
||||
|
||||
echo "==== RUN HEALTH CHECK ==== "
|
||||
|
||||
local -r check_cmd="curl --location --silent http://127.0.0.1:$LOCAL_PORT/clusters &> /dev/null"
|
||||
local -r check_cmd="curl --location http://127.0.0.1:$LOCAL_PORT/clusters &> /dev/null"
|
||||
local -r check_msg="Wait for port forwarding to take effect"
|
||||
echo "Command for checking: $check_cmd"
|
||||
|
||||
if retry "$check_cmd" "$check_msg"; then
|
||||
echo "==== SUCCESS: OPERATOR IS RUNNING ==== "
|
||||
echo "To stop it cleanly, run 'minikube delete'"
|
||||
echo "==== SUCCESS: OPERATOR IS RUNNING ==== "
|
||||
echo "To stop it cleanly, run 'minikube delete'"
|
||||
else
|
||||
>2& echo "==== FAILURE: OPERATOR DID NOT START OR PORT FORWARDING DID NOT WORK"
|
||||
>2& echo "This *might* have left the minikube VM image in inconsistent state."
|
||||
exit 1
|
||||
>2& echo "==== FAILURE: OPERATOR DID NOT START OR PORT FORWARDING DID NOT WORK ==== "
|
||||
exit 1
|
||||
fi
|
||||
|
||||
}
|
||||
|
||||
|
||||
function main(){
|
||||
|
||||
if ! [[ $(basename $PWD) == "postgres-operator" ]]; then
|
||||
echo "Please execute the script only from the root directory of the Postgres opepator repo."
|
||||
exit 1
|
||||
if ! [[ $(basename "$PWD") == "postgres-operator" ]]; then
|
||||
echo "Please execute the script only from the root directory of the Postgres opepator repo."
|
||||
exit 1
|
||||
fi
|
||||
|
||||
trap "echo 'If you observe issues with minikube VM not starting/not proceeding, consider deleting the .minikube dir and/or rebooting before re-running the script'" EXIT
|
||||
|
||||
local should_build_operator=false
|
||||
local should_build_custom_operator=false # used in start_operator()
|
||||
while true
|
||||
do
|
||||
# if 1st param is unset, use the empty string as a default value
|
||||
case "${1:-}" in
|
||||
|
||||
-h | --help)
|
||||
display_help
|
||||
exit 0
|
||||
;;
|
||||
-r | --rebuild-operator)
|
||||
should_build_operator=true
|
||||
shift 2 || true
|
||||
break
|
||||
;;
|
||||
--) shift
|
||||
break;;
|
||||
*) break
|
||||
;;
|
||||
esac
|
||||
# if the 1st param is unset, use the empty string as a default value
|
||||
case "${1:-}" in
|
||||
-h | --help)
|
||||
display_help
|
||||
exit 0
|
||||
;;
|
||||
-r | --rebuild-operator)
|
||||
should_build_custom_operator=true
|
||||
break
|
||||
;;
|
||||
*) break
|
||||
;;
|
||||
esac
|
||||
done
|
||||
|
||||
clean_up
|
||||
start_minikube
|
||||
start_operator should_build_operator
|
||||
start_operator
|
||||
forward_ports
|
||||
check_health
|
||||
|
||||
|
|
@ -235,4 +232,3 @@ function main(){
|
|||
|
||||
|
||||
main "$@"
|
||||
|
||||
|
|
|
|||
|
|
@ -0,0 +1,236 @@
|
|||
#!/usr/bin/env bash
|
||||
#
|
||||
# Deploy a Postgres operator to a minikube aka local Kubernetes cluster
|
||||
# Optionally re-build the operator binary beforehand to test local changes
|
||||
|
||||
|
||||
# enable unofficial bash strict mode
|
||||
set -o errexit
|
||||
set -o nounset
|
||||
set -o pipefail
|
||||
IFS=$'\n\t'
|
||||
|
||||
|
||||
readonly PATH_TO_LOCAL_OPERATOR_MANIFEST="/tmp/local-postgres-operator.yaml"
|
||||
readonly PATH_TO_PORT_FORWARED_KUBECTL_PID="/tmp/kubectl-port-forward.pid"
|
||||
readonly LOCAL_PORT="8080"
|
||||
readonly OPERATOR_PORT="8080"
|
||||
|
||||
|
||||
# minikube needs time to create resources,
|
||||
# so the script retries actions until all the resources become available
|
||||
function retry(){
|
||||
|
||||
# errexit may break "eval $cmd", so we disable it temporarily
|
||||
set +o errexit
|
||||
|
||||
local -r cmd="$1"
|
||||
local -r retry_msg="$2"
|
||||
|
||||
# times out after 1 minute
|
||||
for i in {1..20}; do
|
||||
if eval "$cmd"; then
|
||||
set -o errexit # enable again
|
||||
return 0
|
||||
fi
|
||||
echo "$retry_msg"
|
||||
sleep 3
|
||||
done
|
||||
|
||||
>2& echo "The command $cmd timed out"
|
||||
return 1
|
||||
}
|
||||
|
||||
|
||||
function display_help(){
|
||||
echo "Usage: ./run_locally.sh [ -r | --rebuild-operator ] [ -h | --help ]"
|
||||
}
|
||||
|
||||
|
||||
function clean_up(){
|
||||
|
||||
echo "==== CLEAN UP PREVIOUS RUN ==== "
|
||||
|
||||
local status
|
||||
status=$(minikube status --format "{{.MinikubeStatus}}" || true)
|
||||
|
||||
if [[ "$status" = "Running" ]] || [[ "$status" = "Stopped" ]]; then
|
||||
echo "Delete the existing local cluster so that we can cleanly apply resources from scratch..."
|
||||
minikube delete
|
||||
fi
|
||||
|
||||
if [[ -e "$PATH_TO_LOCAL_OPERATOR_MANIFEST" ]]; then
|
||||
rm --verbose "$PATH_TO_LOCAL_OPERATOR_MANIFEST"
|
||||
fi
|
||||
|
||||
# the kubectl process does the port-forwarding between operator and local ports
|
||||
# we restart the process to bind to the same port again (see end of script)
|
||||
if [[ -e "$PATH_TO_PORT_FORWARED_KUBECTL_PID" ]]; then
|
||||
|
||||
local pid
|
||||
pid=$(cat "$PATH_TO_PORT_FORWARED_KUBECTL_PID")
|
||||
|
||||
# the process dies if a minikube stops between two invocations of the script
|
||||
if ps --pid "$pid" > /dev/null 2>&1; then
|
||||
echo "Kill the kubectl process responsible for port forwarding for minikube so that we can re-use the same ports for forwarding later..."
|
||||
kill "$pid"
|
||||
fi
|
||||
rm --verbose /tmp/kubectl-port-forward.pid
|
||||
|
||||
fi
|
||||
}
|
||||
|
||||
|
||||
function start_minikube(){
|
||||
|
||||
echo "==== START MINIKUBE ==== "
|
||||
echo "May take a few minutes ..."
|
||||
|
||||
minikube start
|
||||
kubectl config set-context minikube
|
||||
|
||||
echo "==== MINIKUBE STATUS ==== "
|
||||
minikube status
|
||||
|
||||
}
|
||||
|
||||
|
||||
function build_operator_binary(){
|
||||
|
||||
# redirecting stderr greatly reduces non-informative output during normal builds
|
||||
echo "Build operator binary (stderr redirected to /dev/null)..."
|
||||
|
||||
make tools > /dev/null 2>&1
|
||||
make deps > /dev/null 2>&1
|
||||
make local > /dev/null 2>&1
|
||||
}
|
||||
|
||||
|
||||
function deploy_self_built_image() {
|
||||
|
||||
echo "==== DEPLOY CUSTOM OPERATOR IMAGE ==== "
|
||||
|
||||
build_operator_binary
|
||||
|
||||
# the fastest way to run a docker image locally is to reuse the docker from minikube
|
||||
# set docker env vars so that docker can talk to the Docker daemon inside the minikube
|
||||
eval $(minikube docker-env)
|
||||
|
||||
# image tag consists of a git tag or a unique commit prefix
|
||||
# and the "-dev" suffix if there are uncommited changes in the working dir
|
||||
local -x TAG
|
||||
TAG=$(git describe --tags --always --dirty="-dev")
|
||||
readonly TAG
|
||||
|
||||
# build the image
|
||||
make docker > /dev/null 2>&1
|
||||
|
||||
# update the tag in the postgres operator conf
|
||||
# since the image with this tag already exists on the machine,
|
||||
# docker should not attempt to fetch it from the registry due to imagePullPolicy
|
||||
sed --expression "s/\(image\:.*\:\).*$/\1$TAG/" manifests/postgres-operator.yaml > "$PATH_TO_LOCAL_OPERATOR_MANIFEST"
|
||||
|
||||
retry "kubectl create -f \"$PATH_TO_LOCAL_OPERATOR_MANIFEST\"" "attempt to create $PATH_TO_LOCAL_OPERATOR_MANIFEST resource"
|
||||
}
|
||||
|
||||
|
||||
function start_operator(){
|
||||
|
||||
echo "==== START OPERATOR ==== "
|
||||
echo "Certain operations may be retried multiple times..."
|
||||
|
||||
# the order of resource initialization is significant
|
||||
local file
|
||||
for file in "configmap.yaml" "serviceaccount.yaml"
|
||||
do
|
||||
retry "kubectl create -f manifests/\"$file\"" "attempt to create $file resource"
|
||||
done
|
||||
|
||||
if [[ "$should_build_custom_operator" = true ]]; then # set in main()
|
||||
deploy_self_built_image
|
||||
else
|
||||
retry "kubectl create -f manifests/postgres-operator.yaml" "attempt to create /postgres-operator.yaml resource"
|
||||
fi
|
||||
|
||||
local -r msg="Wait for the postgresql custom resource definition to register..."
|
||||
local -r cmd="kubectl get crd | grep --quiet 'postgresqls.acid.zalan.do'"
|
||||
retry "$cmd" "$msg "
|
||||
|
||||
kubectl create -f manifests/complete-postgres-manifest.yaml
|
||||
}
|
||||
|
||||
|
||||
function forward_ports(){
|
||||
|
||||
echo "==== FORWARD OPERATOR PORT $OPERATOR_PORT TO LOCAL PORT $LOCAL_PORT ===="
|
||||
|
||||
local operator_pod
|
||||
operator_pod=$(kubectl get pod -l name=postgres-operator -o jsonpath={.items..metadata.name})
|
||||
|
||||
# runs in the background to keep current terminal responsive
|
||||
# stdout redirect removes the info message about forwarded ports; the message sometimes garbles the cli prompt
|
||||
kubectl port-forward "$operator_pod" "$LOCAL_PORT":"$OPERATOR_PORT" &> /dev/null &
|
||||
|
||||
pgrep --newest "kubectl" > "$PATH_TO_PORT_FORWARED_KUBECTL_PID"
|
||||
}
|
||||
|
||||
|
||||
function check_health(){
|
||||
|
||||
echo "==== RUN HEALTH CHECK ==== "
|
||||
|
||||
local -r check_cmd="curl --location --silent http://127.0.0.1:$LOCAL_PORT/clusters &> /dev/null"
|
||||
local -r check_msg="Wait for port forwarding to take effect"
|
||||
echo "Command for checking: $check_cmd"
|
||||
|
||||
if retry "$check_cmd" "$check_msg"; then
|
||||
echo "==== SUCCESS: OPERATOR IS RUNNING ==== "
|
||||
echo "To stop it cleanly, run 'minikube delete'"
|
||||
else
|
||||
>2& echo "==== FAILURE: OPERATOR DID NOT START OR PORT FORWARDING DID NOT WORK"
|
||||
>2& echo "This *might* have left the minikube VM image in inconsistent state."
|
||||
exit 1
|
||||
fi
|
||||
|
||||
}
|
||||
|
||||
|
||||
function main(){
|
||||
|
||||
if ! [[ $(basename $PWD) == "postgres-operator" ]]; then
|
||||
echo "Please execute the script only from the root directory of the Postgres opepator repo."
|
||||
exit 1
|
||||
fi
|
||||
|
||||
trap "echo 'If you observe issues with minikube VM not starting/not proceeding, consider deleting the .minikube dir and/or rebooting before re-running the script'" EXIT
|
||||
|
||||
local should_build_custom_operator=false # used in start_operator()
|
||||
while true
|
||||
do
|
||||
# if the 1st param is unset, use the empty string as a default value
|
||||
case "${1:-}" in
|
||||
-h | --help)
|
||||
display_help
|
||||
exit 0
|
||||
;;
|
||||
-r | --rebuild-operator)
|
||||
should_build_custom_operator=true
|
||||
break
|
||||
;;
|
||||
*) break
|
||||
;;
|
||||
esac
|
||||
done
|
||||
|
||||
clean_up
|
||||
start_minikube
|
||||
start_operator
|
||||
forward_ports
|
||||
check_health
|
||||
|
||||
exit 0
|
||||
}
|
||||
|
||||
|
||||
main "$@"
|
||||
|
||||
Loading…
Reference in New Issue