deployment problem with permission denied while selecting node version - azure-web-app-service

Question

From the beginning, I've always had problem using kudu deployment for my node 12 web app.
This time I have select node version failed in pipeline logs, but a Not setting execute permissions for bash when I access the log details from the link. The worst is that nothing has changed in the code or the pipeline, one day you woke up, and your app doesn't work any more. This is the third time it happens, every time a new version of node is available in the list of available versions. Can someone please point me out THE solution that will work for more than one month please ? I used the default script for node web apps from kudu documentation, just replaced npm with yarn. And using the environment variables WEBSITE_NODE_DEFAULT_VERSION and WEBSITE_NPM_DEFAULT_VERSION in the app configuration. I tried every combination of node version var with or without the npm one, ... nothing works. I really need a long term solution to finally solve this problem, otherwise I think I will move to more stable alternatives. Any help is much appreciated.
An issue that can be related https://github.com/projectkudu/kudu/issues/2870#issuecomment-443464291
EDIT
this is my .deployment file
[config]
command = bash ./scripts/bash/deploy.sh
this is my shell file in scripts/bash/deploy.sh, as you can see the only difference with the default custom deployment script retrived with the command kuduscript -y --node, is yarn instead of npm
#!/bin/bash
# ----------------------
# KUDU Deployment Script
# Version: 1.0.17
# ----------------------
# Helpers
# -------
exitWithMessageOnError() {
if [ ! $? -eq 0 ]; then
echo "An error has occurred during web site deployment."
echo $1
exit 1
fi
}
# Prerequisites
# -------------
# Verify node.js installed
hash node 2>/dev/null
exitWithMessageOnError "Missing node.js executable, please install node.js, if already installed make sure it can be reached from current environment."
# Setup
# -----
SCRIPT_DIR="${BASH_SOURCE[0]%\\*}"
SCRIPT_DIR="${SCRIPT_DIR%/*}"
ARTIFACTS=$SCRIPT_DIR/../artifacts
KUDU_SYNC_CMD=${KUDU_SYNC_CMD//\"/}
if [[ ! -n "$DEPLOYMENT_SOURCE" ]]; then
DEPLOYMENT_SOURCE=$SCRIPT_DIR
fi
if [[ ! -n "$NEXT_MANIFEST_PATH" ]]; then
NEXT_MANIFEST_PATH=$ARTIFACTS/manifest
if [[ ! -n "$PREVIOUS_MANIFEST_PATH" ]]; then
PREVIOUS_MANIFEST_PATH=$NEXT_MANIFEST_PATH
fi
fi
if [[ ! -n "$DEPLOYMENT_TARGET" ]]; then
DEPLOYMENT_TARGET=$ARTIFACTS/wwwroot
else
KUDU_SERVICE=true
fi
if [[ ! -n "$KUDU_SYNC_CMD" ]]; then
# Install kudu sync
echo Installing Kudu Sync
npm install kudusync -g --silent
exitWithMessageOnError "npm failed"
if [[ ! -n "$KUDU_SERVICE" ]]; then
# In case we are running locally this is the correct location of kuduSync
KUDU_SYNC_CMD=kuduSync
else
# In case we are running on kudu service this is the correct location of kuduSync
KUDU_SYNC_CMD=$APPDATA/npm/node_modules/kuduSync/bin/kuduSync
fi
fi
# Node Helpers
# ------------
selectNodeVersion() {
if [[ -n "$KUDU_SELECT_NODE_VERSION_CMD" ]]; then
SELECT_NODE_VERSION="$KUDU_SELECT_NODE_VERSION_CMD \"$DEPLOYMENT_SOURCE\" \"$DEPLOYMENT_TARGET\" \"$DEPLOYMENT_TEMP\""
eval $SELECT_NODE_VERSION
exitWithMessageOnError "select node version failed"
if [[ -e "$DEPLOYMENT_TEMP/__nodeVersion.tmp" ]]; then
NODE_EXE=$(cat "$DEPLOYMENT_TEMP/__nodeVersion.tmp")
exitWithMessageOnError "getting node version failed"
fi
if [[ -e "$DEPLOYMENT_TEMP/__npmVersion.tmp" ]]; then
NPM_JS_PATH=$(cat "$DEPLOYMENT_TEMP/__npmVersion.tmp")
exitWithMessageOnError "getting npm version failed"
fi
if [[ ! -n "$NODE_EXE" ]]; then
NODE_EXE=node
fi
NPM_CMD="\"$NODE_EXE\" \"$NPM_JS_PATH\""
else
NPM_CMD=npm
NODE_EXE=node
fi
}
##################################################################################################################################
# Deployment
# ----------
echo Handling node.js deployment.
# 1. KuduSync
if [[ "$IN_PLACE_DEPLOYMENT" -ne "1" ]]; then
"$KUDU_SYNC_CMD" -v 50 -f "$DEPLOYMENT_SOURCE" -t "$DEPLOYMENT_TARGET" -n "$NEXT_MANIFEST_PATH" -p "$PREVIOUS_MANIFEST_PATH" -i ".git;.hg;.deployment;deploy.sh"
exitWithMessageOnError "Kudu Sync failed"
fi
# 2. Select node version
selectNodeVersion
# 3. Install yarn packages
if [ -e "$DEPLOYMENT_TARGET/package.json" ]; then
cd "$DEPLOYMENT_TARGET"
echo "Running yarn install"
eval yarn install --production=false --network-timeout 1000000
echo "building dist"
eval yarn build
echo "Running migrations"
eval yarn typeorm:migration:run
exitWithMessageOnError "yarn failed"
cd - >/dev/null
fi
##################################################################################################################################
echo "Finished successfully."
I set (this time, but I already tried multiple combinations) only the variable WEBSITE_NODE_DEFAULT_VERSION to 12.18.2, and I didn't set the WEBSITE_NPM_DEFAULT_VERSION variable. This is the output when I try to deploy using git local method, with the command git push azure master:master:
Enumerating objects: 9, done.
Counting objects: 100% (9/9), done.
Delta compression using up to 8 threads
Compressing objects: 100% (3/3), done.
Writing objects: 100% (5/5), 391 bytes | 391.00 KiB/s, done.
Total 5 (delta 2), reused 0 (delta 0), pack-reused 0
remote: Deploy Async
remote: Updating branch 'master'.
remote: Updating submodules.
remote: Preparing deployment for commit id '79f0842a60'.
remote: Running custom deployment command...
remote: Not setting execute permissions for bash ./scripts/bash/deploy.sh
remote: Running deployment command...
remote: Handling node.js deployment.
remote: Kudu sync from: '/home/site/repository' to: '/home/site/wwwroot'
remote: Ignoring: .deployment
remote: Ignoring: .git
remote: Ignoring: scripts/bash/deploy.sh
remote: Detecting node version spec...
remote: Using appsetting WEBSITE_NODE_DEFAULT_VERSION value: 12.18.2
remote: Node.js versions available on the platform are: 8.0.0, 8.1.4, 8.2.1, 8.8.1, 8.9.4, 8.11.4, 8.12.0, 8.15.1, 8.17.0, 9.4.0, 10.1.0, 10.10.0, 10.14.2, 10.21.0, 10.23.0, 12.18.2, 12.19.0, 14.15.0.
remote: ENOENT: no such file or directory, open '/opt/nodejs/12.18.2/npm.txt'
remote: Resolved to version 12.18.2
remote: Detecting npm version spec...
remote: An error has occurred during web site deployment.
remote: select node version failed
remote: Deployment Logs : 'https://***.scm.azurewebsites.net/newui/jsonviewer?view_url=/api/deployments/79f0842a60c7fe25af603fe673868789272923e3/log'
To https://***.scm.azurewebsites.net:443/kiwi-prod-appservice.git
cdc1c91..79f0842 master -> master
When I click on the link to see log details:
[
"0" :
{
"details_url" : null,
"id" : "660d4119-1437-494a-a97b-5af7244afd58",
"log_time" : "2020-12-22T04:58:51.7786621Z",
"message" : "Updating branch 'master'.",
"type" : 0
}
,
"1" :
{
"details_url" : null,
"id" : "bca90e55-fc4c-40c4-91bd-337a0e3df515",
"log_time" : "2020-12-22T04:58:53.3322101Z",
"message" : "Updating submodules.",
"type" : 0
}
,
"2" :
{
"details_url" : null,
"id" : "bfc59c6f-e3ad-4bbd-afb5-bda11bec9771",
"log_time" : "2020-12-22T04:58:53.3779506Z",
"message" : "Preparing deployment for commit id '79f0842a60'.",
"type" : 0
}
,
"3" :
{
"details_url" : null,
"id" : "92219cc6-d58f-4988-9ec5-c1fd109c0986",
"log_time" : "2020-12-22T04:58:53.4866308Z",
"message" : "Running custom deployment command...",
"type" : 0
}
,
"4" :
{
"details_url" : null,
"id" : "f61aa2f5-8d77-4d3b-b328-3ab1fc69bf33",
"log_time" : "2020-12-22T04:58:53.51928Z",
"message" : "Not setting execute permissions for bash ./scripts/bash/deploy.sh",
"type" : 0
}
,
"5" :
{
"details_url" : "https://***.scm.azurewebsites.net/api/deployments/79f0842a60c7fe25af603fe673868789272923e3/log/3ed28b72-4514-4c87-8d6a-006c09150754",
"id" : "3ed28b72-4514-4c87-8d6a-006c09150754",
"log_time" : "2020-12-22T04:58:53.5555321Z",
"message" : "Running deployment command...",
"type" : 2
}
]

Answer 1

solved (for now) after commenting the SELECT_NODE_VERSION command
# SELECT_NODE_VERSION="$KUDU_SELECT_NODE_VERSION_CMD \"$DEPLOYMENT_SOURCE\" \"$DEPLOYMENT_TARGET\" \"$DEPLOYMENT_TEMP\""
# eval $SELECT_NODE_VERSION
# exitWithMessageOnError "select node version failed"
because the error was always triggered. I also had to use npm instead of yarn, because the node version used by yarn wasn't the correct one