I have put my configuration files down to as simple of an example as I can think of, but I still can't get the cron to execute. This is a django project, and though it looks like the crons are trying to run, they are not actually executing.
.ebextensions/cron-log.config
"/etc/cron.d/test_cron":
mode: "000644"
owner: root
group: root
content: |
*/1 * * * * root . /opt/elasticbeanstalk/deployment/env && echo "TESTING" >> /var/log/test_log.log 2>&1
commands:
rm_old_cron:
command: "rm -fr /etc/cron.d/*.bak"
ignoreErrors: true
when downloading the logs from aws, test_log.log does not exist
in the cron file returned in the logs, it shows:
Oct 29 09:03:01 ip-172-31-8-91 CROND[10212]: (root) CMD (. /opt/elasticbeanstalk/deployment/env && echo "TESTING" >> /var/log/test_log.log 2>&1)
I have tried many variations of this including having the command that is ran make changes in our database, but it never seems to actually execute.
I ran into this same issue recently (PHP ElasticBeanstalk, migrating to AL2), and found this solution.
Basically since Amazon Linux 2 no longer has "/opt/elasticbeanstalk/support/envvars", and "/opt/elasticbeanstalk/deployment/env" requires sudo to access, you'll need to effectively create your own environment variables file for your cron jobs to reference. Create a new .ebextensions config script containing the following:
commands:
setvars:
command: /opt/elasticbeanstalk/bin/get-config environment | jq -r 'to_entries | .[] | "export \(.key)=\"\(.value)\""' > /etc/profile.d/sh.local
Then, reference the "/etc/profile.d/sh.local" file instead of "/opt/elasticbeanstalk/deployment/env". Your cron entry should now look like:
*/1 * * * * root . /etc/profile.d/sh.local && echo "TESTING" >> /var/log/test_log.log 2>&1
...and you should be good to go! :)
I am trying to set a cron job on my project to send a email after 15 minutes.
This is in django.config
04_cronjb:
command: "cat .ebextensions/cron-linux.config > /etc/cron.d/crontab && chmod 644 /etc/cron.d/crontab"
leader_only: true
This is my cron-linux.config file
files:
"/etc/cron.d/mycron":
mode: "000644"
owner: root
group: root
content: |
* * * * * source /opt/python/current/env && python /opt/python/current/app/manage.py cronjb
It all deploys successfully but i am not receiving any email.
Cronjb script is working i have tested it. So the error is one these two files.
Is there some mistake in it?
Your 04_cronjb copies entire content of cron-linux.config into crontab. This is sadly incorrect.
Instead you should do as shown here. This includes putting all the bash commands you want to execute in a custom script called, e.g., myscript.sh and then adding myscript.sh to cron only.
I have been working on configuring a cron job while deploying an environment on Elastic Beanstalk. The purpose of the job is to run every 30 minutes and execute a Node.js script that processes SMS schedules in our system; when a schedule is ready, an SMS message is sent via the Twilio api.
Unfortunately, Node.js environments don't have the file /opt/elasticbeanstalk/support/envvars containing the environment variables defined (Maybe I am missing something?).
To work around this issue, I am loading the environment variables from /opt/elasticbeanstalk/bin/get-config in Python and then executing my Node.js script.
Everything is working as expected so hopefully this can help someone in the same situation; however, I am wondering if there is a better way to accomplish this... Open to suggestions.
In my .ebextensions folder I have the config file for the cron:
files:
"/etc/cron.d/process-sms-schedules":
mode: "000644"
owner: root
group: root
content: |
*/30 * * * * root /usr/local/bin/process-sms-schedules.sh
"/usr/local/bin/process-sms-schedules.sh":
mode: "000755"
owner: root
group: root
content: |
#!/bin/bash
# Execute script to process schedules
python /var/app/current/process-sms-schedules.py > /var/log/process-sms-schedules.log
exit 0
commands:
remove_old_cron:
command: "rm -f /etc/cron.d/*.bak"
Here is the Python script that gets executed as part of the cron job:
#!/usr/bin/env python
import os
import subprocess
from subprocess import Popen, PIPE, call
import simplejson as json
envData = json.loads(Popen(['/opt/elasticbeanstalk/bin/get-config', 'environment'], stdout = PIPE).communicate()[0])
for k, v in envData.iteritems():
os.environ[k] = v
call(["babel-node", "/var/app/current/process-sms-schedules.js"])
Thanks in advance for any feedback.
References
Cron Job Elastic Beanstalk
How to set environment variable in Amazon Elastic Beanstalk (Python)
I had this issue while trying to execute a PHP file inside an Elastic Beanstalk environment. In particular I was trying to execute wp-cron.php file.
Basically you should write a cron job like this:
/etc/cron.d/wp-cronjob :
PATH=/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/opt/aws/bin:/home/ec2-user/.local/bin:/home/ec2-user/bin
*/5 * * * * ec2-user . /opt/elasticbeanstalk/support/envvars; /usr/bin/php /var/www/html/wp-cron.php > /dev/null 2>&1
Explained:
Every 5 minutes executes commands as user "ec2-user": '*/5 * * * * ec2-user'
Loads elasticbeanstalk environment variables: '. /opt/elasticbeanstalk/support/envvars;'.
Do not print any output: '> /dev/null 2>&1'.
Also:
.ebextensions/wp-cronjob.txt
# Load paths
PATH=/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/opt/aws/bin:/home/ec2-user/.local/bin:/home/ec2-user/bin
# Every 5 minutes executes commands as user "ec2-user": '*/5 * * * * ec2-user'.
# Loads elasticbeanstalk environment variables: '. /opt/elasticbeanstalk/support/envvars;'.
# Do not print any output: '> /dev/null 2>&1'.
*/5 * * * * ec2-user . /opt/elasticbeanstalk/support/envvars; /usr/bin/php /var/www/html/wp-cron.php > /dev/null 2>&1
.ebextensions/cronjob.config
container_commands:
add_wp_cronjob:
command: "cat .ebextensions/wp-cronjob.txt > /etc/cron.d/wp-cronjob && chmod 644 /etc/cron.d/wp-cronjob"
leader_only: true
commands:
remove_old_cron:
command: "rm -f /etc/cron.d/*.bak"
Maybe is not the same for a Node.js environment but I am pretty sure they are similar.
I have a web app running on elastic beanstalk. For some reason I was able to install the composer files in order to run my laravel app. The problem is that no other config file works. I have put newrelic.config into the .ebextensions/ directory, but that file got ignored.
I recently tried to create a cron job using this, AWS Elastic Beanstalk, running a cronjob, but it is not working.
Example of a .config file:
container_commands:
01_some_cron_job:
command: "cat .ebextensions/some_cron_job.txt > /etc/cron.d/some_cron_job && chmod 644 /etc/cron.d/some_cron_job"
leader_only: true
When I ssh into the ec2 instance, there is no such directory as some_cron_job.
The source gets committed to beanstalk, but beanstalk is not running the commands.
How can I make beanstalk acknowledge the .config files. Fixing this cronjob will also fix installing new relic, because both configs are being ignored and I do not know why.
Try putting it in commands section. It is more of a server command than a container command.
commands:
01_some_cron_job:
command: "cat .ebextensions/some_cron_job.txt > /etc/cron.d/some_cron_job && chmod 644 /etc/cron.d/some_cron_job"
leader_only: true
I had similar issues as well using container_commands and files, however, I deferred to the files event and it worked like a charm. My specific setup is as below.
.ebextensions/cron.config
files:
"/etc/cron.d/mycronstuff":
mode: "000644"
owner: root
group: root
content: |
# Run daily job every 8 hours
0 */8 * * * root curl -i XXXXXXXXXX
# Run nightly job at 2AM (8AM UTC)
0 8 * * * root curl -i XXXXXXXXX
Update 2019:
You must use a cron.yaml file on your project directory.
inside the file you can mention:
version: 1
cron:
- name: "task1"
url: "/scheduled"
schedule: "* * * * *"
I´m running an EC2 instance through AWS Elastic Beanstalk. Unfortunately it has the incorrect timezone - it´s 2 hours earlier than it should be, because timezone is set to UTC. What I need is GMT+1.
Is there a way to set up the .ebextensions configuration, in order to force the EC2 instance to use the right timezone?
Yes, you can.
Just create a file /.ebextensions/00-set-timezone.config with following content
commands:
set_time_zone:
command: ln -f -s /usr/share/zoneinfo/Australia/Sydney /etc/localtime
This is assuming your are using default Amazon Linux AMI image. If you use some other Linux distribution, just change the command to whatever it requires to set timezone in that Linux.
This is a response from the aws Support Business and this works!
---- Original message ----
How can I change the timezone of an enviroment or rather to the instances of the enviroment in Elastic Beasntalk to UTC/GMT -3 hours (Buenos Aires, Argentina)?
I´m currently using Amazon Linux 2016.03. Thanks in advance for your help.
Regards.
---------- Response ----------
Hello,Thank you for contacting AWS support regarding modifying your Elastic Beanstalk instances time zone to use UTC/GMT -3 hours (Buenos Aires, Argentina), please see below on steps on how to perform this modification.
The below example shows how to modify timezone for Elastic Beanstalk environment using .ebextensions for Amazon Linux OS:
Create .ebextensions folder in the root of your application
Create a .config file for example 00-set-timezone.config file and add the below content in yaml formatting.
container_commands:
01changePHP:
command: sed -i '/PHP_DATE_TIMEZONE/ s/UTC/America\/Argentina\/Buenos_Aires/' /etc/php.d/environment.ini
01achangePHP:
command: sed -i '/aws.php_date_timezone/ s/UTC/America\/Argentina\/Buenos_Aires/' /etc/php.d/environment.ini
02change_AWS_PHP:
command: sed -i '/PHP_DATE_TIMEZONE/ s/UTC/America\/Argentina\/Buenos_Aires/' /etc/httpd/conf.d/aws_env.conf
03php_ini_set:
command: sed -i '/date.timezone/ s/UTC/America\/Argentina\/Buenos_Aires/' /etc/php.ini
commands:
01remove_local:
command: "rm -rf /etc/localtime"
02link_Buenos_Aires:
command: "ln -s /usr/share/zoneinfo/America/Argentina/Buenos_Aires /etc/localtime"
03restart_http:
command: sudo service httpd restart
Deploy application to Elastic Beanstalk including the .ebextensions and the timezone will change as per the above.
I hope that helps
Regards!
If you are running windows in your eb environment...
.
create a folder named .ebextensions in the root of your project..
inside that folder create a file named timezone.config
in that file add the following :
commands:
set_time_zone:
command: tzutil /s "Central Standard Time"
set the time zone as needed
screenshot
I'm using custom .ini file in php.d folder along with regular recommendations from http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/set-time.html#change_time_zone:
The sed command inserts (rewrites) only the first line of /etc/sysconfig/clock, since the second line (UTC=true) should be left alone, per the above AWS documentation.
# .ebextensions/02-timezone.config
files:
/etc/php.d/webapp.ini:
mode: "000644"
owner: root
group: root
content: |
date.timezone="Europe/Amsterdam"
commands:
01_set_ams_timezone:
command:
- sed -i '1 s/UTC/Europe\/Amsterdam/g' /etc/sysconfig/clock
- ln -sf /usr/share/zoneinfo/Europe/Amsterdam /etc/localtime
Changing the time zone of EC2 with Elastic Beanstalk is simple:
Create a .ebextensions folder in the root
Add a file with filename end with .config (timezone.config)
Inside the file
container_commands:
time_zone:
command: ln -f -s /usr/share/zoneinfo/America/Argentina/Buenos_Aires /etc/localtime
Then you have done.
Note that the container_commands is different from commands, from the document it states:
commands run before the application and web server are set up and
the application version file is extracted.
That's the reason of your time zone command doesn't work because the server hasn't started yet.
container_commands run after the application and web server have been
set up and the application version file has been extracted, but before
the application version is deployed.
If you are runing a java/Tomcat container, just put the JVM Option on the configuration.
-Duser.timezone=America/Sao_Paulo
Possibles values: timezones
Moving to AWS Linux 2 was challenging. It took me a while to work out how to do this easily in .ebextensions.
I wrote the simple solution in another stackoverflow question .. but for anyone needing instant gratification .. add the following commands into the file .ebextensions/xxyyzz.config:
container_commands:
01_set_bne:
command: "sudo timedatectl set-timezone Australia/Brisbane"
command: "sudo systemctl restart crond.service"
These workarounds only fixes the timezone for applications. But when you have any system services like a cron run it looks at the /etc/sysconfig/clock and that is always UTC. If you tail the cron logs or aws-sqsd logs would will notice timestamps are still 2hrs behind - in my case. And a change to the clock setting would need a reboot into order to take effect - which is not an option to consider should you have autoscaling in place or should you want to use ebextensions to change the system clock's config.
Amazon is aware of this issue and I dont think they have resolved it yet.
If your EB application is using the Java/Tomcat container, you can add the JVM timezone Option to the Procfile configuration. Example:
web: java -Duser.timezone=Europe/Berlin -jar application.jar
Make sure to add all configuration options before the -jar option, otherwise they are ignored.
in the .ebextensions added below for PHP
container_commands:
00_changePHP:
command: sed -i '/;date.timezone =/c\date.timezone = \"Australia/Sydney\"' /etc/php.ini
01_changePHP:
command: sed -i '/date.timezone = UTC/c\date.timezone = \"Australia/Sydney\"' /etc/php.d/aws.ini
02_set_tz_AEST:
command: "sudo timedatectl set-timezone Australia/Sydney"
command: "sudo systemctl restart crond.service"
commands:
01remove_local:
command: "rm -rf /etc/localtime"
02change_clock:
command: sed -i 's/\"UTC\"/\"Australia\/Sydney\"/g' /etc/sysconfig/clock
03link_Australia_Sydney:
command: "ln -f -s /usr/share/zoneinfo/Australia/Sydney /etc/localtime"
cwd: /etc
Connect AMI(amazon linux instance) via putty or ssh and execute the commands below;
sudo rm /etc/localtime
sudo ln -sf /usr/share/zoneinfo/Europe/Istanbul /etc/localtime
sudo reboot
Explanation of the procedure above is simply;
remove localtime,
update the timezone,
reboot
Please notify that I've changed my timezone to Turkey's localtime, you can find your timezone by listing zoneinfo directory with the command below;
ls /usr/share/zoneinfo
or just check timezone abbrevetaions via wikipedia;
http://en.wikipedia.org/wiki/Category:Tz_database
You can also check out the related Amazon AWS documentation;
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/set-time.html
Note: I'm not sure that if this is the best practice or not (probably not), however I've applied the procedure I've written above and it's working for me.