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Documents Product Categories MEVN Stack on Alma Linux 8 with Support by cloudimg

MEVN Stack on Alma Linux 8 with Support by cloudimg

Jun 28, 2024
Alma Linux 8 – MEVN Stack Version: 1.0.0 Created by: cloudimg Table of Contents 1.) Overview......................................................................................................................1 2.) Access & Security..........................................................................................................1 3.) System Requirements....................................................................................................2 4.) Connecting to the Instance...........................................................................................2 5.) On Startup....................................................................................................................2 6.) Filesystem Configuration..............................................................................................3 7.) Server Components......................................................................................................3 8.) Scripts and Log Files.....................................................................................................4 9.) Using System Components...........................................................................................4 1.) Overview This document is provided as a user guide for the Alma Linux 8 – MEVN Stack product offering on the Alibaba Cloud Marketplace. Please reach out to support@cloudimg.co.uk if any issues are encountered following this user guide for the chosen product offering. 2.)Access & SecurityPlease update the security group of the target instance to allow the below ports and protocols for access and connectivity. Protocol Type Port Description SSH TCP 22 SSH connectivity Custom TCP TCP 27017 Default MongoDB database port for remote connectivity Custom TCP TCP 3000 Express sample application front end Custom TCP TCP 8080 VueJS sample application front end 3.)System Requirements The minimum system requirements for the chosen product offering can be found below Minimum CPU Minimum RAM Required Disk Space 1 1 GB 20 GB 4.) Connecting to the Instance Once launched in the ECS Console, please connect to the instance via an SSH client using the root user with the key pair associated at launch. 5.) On Startup An OS package update script has been configured to run on boot to ensure the image is fully up to date at first use. You can disable this feature by removing the script from /stage/scripts/ and deleting the entry in crontab for the root user. Disable the OS update script from running on reboot rm -f /stage/scripts/initial_boot_update.sh crontab -e #DELETE THE BELOW LINE. SAVE AND EXIT THE FILE. @reboot /stage/scripts/initial_boot_update.sh6.) Filesystem Configuration Please see below for a screenshot of the server disk configuration and specific mount point mappings for software locations. Filesystem Size Used Avail Use% Mounted on devtmpfs 971M 0 971M 0% /dev tmpfs 981M 0 981M 0% /dev/shm tmpfs 981M 8.5M 972M 1% /run tmpfs 981M 0 981M 0% /sys/fs/cgroup /dev/nvme0n1p2 38G 3.3G 33G 10% / /dev/nvme1n1 9.8G 337M 8.9G 4% /var/lib/mongo /dev/nvme0n1p1 2.0G 93M 1.8G 6% /boot tmpfs 197M 0 197M 0% /run/user/1002 /dev/nvme2n1 9.8G 508M 8.8G 6% /apps Mount Point Description /boot Operating System Kernel files /var/lib/mongo MongoDB data directory /apps Installation directory for sample Express & VueJS application 7.) Server Components Please see below for a list of installed server components and their respective installation paths. The below versions are subject to change on initial boot based on the initial_boot_update.sh script finding new versions of the software in the systems package repositories. Component Version Software Home Aliyun CLI 3 /usr/local/bin/aliyun Mongo DB 5 Community 5.0.9 /var/lib/mongo Express 4.16.1 /apps/app NodeJS 16.18.0 /bin/node VueJS 5.0.8 /apps/vue-app8.) Scripts and Log Files The below table provides a breakdown of any scripts & log files created to enhance the useability of the chosen offering. Script/Log Path Description Initial_boot_update.sh /stage/scripts Update the Operating System with the latest updates available. Initial_boot_update.log /stage/scripts Provides output for initial_boot_update.sh mongo_db_admin_user_password.log /stage/scripts MongoDB admin database password file start-vue-app.sh /stage/scripts VueJS sample application start-express-app.sh /stage/scripts Express sample application start-vue-app.log /stage/scripts VueJS sample application start log file start-express-app.log /stage/scripts Express sample application start log file 9.) Using System Components Instructions can be found below for using each component of the server build mentioned in section 7 of this user guide document. Aliyun CLI Run – Once logged into the server, you may check the options available for the use of Aliyun CLI via the below command. aliyun –-help MongoDB 5 The MongoDB Database service has been configured to start on boot, please use the below commands to start, stop and check the status of the service. #Check the MongoDB service is running service mongod status #Stop the MongoDB serviceservice mongod stop #Start the MongoDB service service mongod start You can access the mongdb database server as the root user by referring to the instructions in the /stage/scripts/mongo_db_admin_user_password.log file. mongo -u mdbadmin -p #Enter the randomly generated password found in the /stage/scripts/mongo_db_admin_user_password.log file Express A sample Express application has been created in the below directory. A cronjob has also been created to start the application on boot. You can remove this functionality by deleting the crontab entry from the root user. Please also refer to the .log file shown below to view the startup of the application. # Installation Directory /apps/app #Check Express version express –-version #Check Crontab entry for the autonomous start of the application on boot. crontab -e #Remove the below line to stop the application starting on boot if required. @reboot /stage/scripts/start-express-app.sh >> /stage/scripts/start-express-app.log On instance boot, you will be able to access the sample Express Application front end by navigating to the below URL exchanging the values between <> with that of your own instance. :3000VueJS A sample VueJS application has been created in the below directory. A cronjob has also been created to start the application on boot. You can remove this functionality by deleting the crontab entry from the root user. Please also refer to the .log file shown below to view the startup of the application. # Installation Directory /apps/vue-app #Check VueJS version vue --version #Check Crontab entry for the autonomous start of the application on boot. crontab -e #Remove the below line to stop the application starting on boot if required. @reboot /stage/scripts/start-vue-app.sh >> /stage/scripts/start-vue-app.log On instance boot, you will be able to access the sample Vue Application front end by navigating to the below URL exchanging the values between <> with that of your own instance. :8080NodeJS You can check the NodeJS version installation on the system by issuing the below command. node -v
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MEVN Stack on Alma Linux 8 with Support by cloudimg

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