Jelastic 5.8

This document is preliminary and subject to change.

In this document, you will find all of the new features, enhancements and visible changes included to the Jelastic PaaS 5.8 release.

New Tasks Panel

Reworked Tasks Panel in the dashboard to integrate additional tracking and troubleshooting features on top of a new modern design

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Extra Layers for Auto-Clustering in Topology Wizard

Added ability to preview additional nodes that will be created upon enabling template auto-clustering

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Dashboard Icons Optimization

Converted dashboard icons and stack logos to SVG format to get crisp, clear, and lightweight images

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Cloud Scripting Improvements
  • added nesting support for the ShowIf parameter, allowing using them one inside another
  • added minWidth (button’s minimum width) and menu (drop-down list for multiple actions) parameters for add-ons custom buttons
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Container Provisioning Optimization

Improved container provisioning flow to decrease certified containers delivery time

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SSH Connection Security

Optimized SSH-related configs, ceased weak encryption algorithms support, and removed default SSH keys that are less than 2048 bits

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Redeploy Error Messages Review

Reviewed error messages related to container redeploy to improve existing notifications and clean up deprecated ones

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API Changes

Listed all the changes to the public Jelastic API in the current release

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Software Stack Versions

Actualized list of supported OS templates and software stack versions

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Scaling Limit Reduction Adjustment

Added obligatory restart of the container(s) to correctly apply the new values upon decreasing the number of flexible cloudlets

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Fixes Compatible with Prior Versions

Bug fixes implemented in the current release and integrated to the previous Jelastic versions through the appropriate patches

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Bug Fixes

List of fixes applied to the platform starting from the current release

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Container Provisioning Optimization

In the present 5.8 Jelastic release, the container provisioning process was reviewed to boost the delivery time. Namely, the base OS image was cleaned up, making templates more lightweight (approximately 150MB less), and optimized, decreasing the number of after-creation adjustments. As a result, all Jelastis-managed containers are created up to two times faster (e.g. for Apache PHP) without any loss in functionality.

The exact impact depends on multiple factors, including stack template, platform configuration, and hardware. In general, the creation of new containers should be at least 50% faster.

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New Tasks Panel

The Tasks panel was completely redesigned to make this tool more modern and feature-rich. Among the UI changes, operation status details were moved to the start of each task and adjusted to use the following labeling: spinner (in progress), green (success) or red (error) dot. Additionally, a custom status icon is displayed for the actions performed by collaborators. Also, the operation target environment is now displayed in a separate column for better clarity.

new tasks panel

Featurewise, almost each task can be expanded to get detailed information on the action parameters and server response, which is especially useful for error troubleshooting. Also, a second Active Log tab (opens upon clicking on the magnifying glass icon) was added to view all the actions performed on the account, i.e. not just recent ones. This new tab is supplemented with the built-in search and filter (error only and by date) options for quick and convenient activity analysis.

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Extra Layers for Auto-Clustering in Topology Wizard

Starting with the present 5.8 Jelastic upgrade, the auto-clustering feature activation in the topology wizard will explicitly display any extra nodes that will be added due to cluster configuration. For example, Auto-Clustering for the GlassFish application server creates the DAS node, which for now, will be displayed in the appropriate extra layer of the topology wizard. Such a change allows achieving transparency when working with templates auto-clustering.

auto-clustering additional nodes

Also, in the confines of this improvement, the highlighting of the fields that do not satisfy auto-clustering feature requirements (e.g. due to account limits) was implemented. Hover over the appropriate cloudlets, node count, public IP, Auto-Clustering fields in the topology wizard for additional details.

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SSH Connection Security

Jelastic PaaS considers security to be one of the priority points of the platform and, thus, regularly implements all the necessary updates and vulnerability fixes. In confines of the current platform upgrade, SSH connection to containers (including SSH Gate) was improved through several configuration adjustments:
  • The default host keys are removed from the container during creation, ensuring that keys from the appropriate Docker image are used. If there aren’t any, they will be generated automatically.
  • The configs of the containers are automatically adjusted to disable the ChallengeResponseAuthentication and AllowTcpForwarding settings. Also, the support of some weak server-to-client encryption algorithms is removed. The list of allowed ciphers is set to, aes128-ctr, aes192-ctr, aes256-ctr,,
  • Within the certified containers, all the keys in the /etc/ssh/moduli directory that are less than 2048 bits are automatically removed during container setup.

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Dashboard Icons Optimization

In the current 5.8 platform release, all the icons utilized in the Jelastic dashboard were converted from the PNG to SVG format. SVG (Scalable Vector Graphics) is a vector image file format, which is drawn from the mathematically declared shapes and curves. Compared to the previously used PNG, which is made up of a fixed number of pixels (raster image), SVG remains crisp and clear for all resolutions and sizes.

Additionally, the SVG format is better suited for the icons and logos, as they are relatively simple (i.e. fewer details than in photographic images), which makes them more lightweight compared to the similar PNG images. In such a way, alongside the better visual, the improvement also slightly boosts the dashboard loading time.

Note: Some of the new icons and logos may not be the exact copies of the previously used images.

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Scaling Limit Reduction Adjustment

In the present 5.8 Jelastic release, an obligatory container restart was implemented for the case of decreasing the scaling limit (i.e. the number of the dynamic cloudlets) on the existing nodes. This operation is required to set a new amount of allocated resources correctly. For better awareness, such necessity will be indicated directly in the topology wizard through the appropriate icon (hover over for details) and additional confirmation upon changes appliance.

Note: The logic for increasing the cloudlets count remains the same - restart is required for the application, database, and cache servers only.

restart on scaling limit reduction

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Redeploy Error Messages Review

Due to the recent implementation of the new container redeploy version, all the relevant error messages were thoroughly reviewed to get rid of the deprecated, update existing, and add new ones. For now, error texts displayed in the dashboard notifications and stored within the appropriate container log files are more precise (i.e. provide better clarity), which helps to troubleshoot redeployment issues faster.

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API Changes

Below, you can find a list of all changes to the public Jelastic API in the 5.8 platform version (compared to the preceding 5.7.2-5.7.5 ones):
  • added IPv6 support for the SwapExtIps method, allowing containers to exchange such addresses, as well as swap IPv4 with IPv6
  • added information about the environment region to the response of the getEnvs and getEnvInfo API methods
  • changes to the marketplace.jps service API:
    • a new ExecuteAppAction method was added
    • a new GetEngineVersion method was added
    • a new Uninstall method was added
    • a token alias was added for the session parameter of the Install and GetScriptingAppid methods
  • changes to the environment.tracking service API:
    • the actionTypes optional parameter was added to the GetUidActions method
    • a new SearchActions method was added

Also, to provide better clarity, the execution of the Install, ExecuteAppAction, Uninstall methods (the marketplace.jps service) is now logged in the tasks panel of the dashboard.

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Fixes Compatible with Prior Versions

Below, you can find the fixes that were implemented in Jelastic 5.8 release and also integrated into previous Jelastic versions by means of the appropriate patches.

Jelastic 5.8
#Compatible fromDescription
JE-50656AnySpecifics of the SwapExtIps method usage are missing in the API documentation
JE-51309AnyThe Ghost package installation from Marketplace fails 
JE-503233.3Incorrect version of Plesk is provided after the appropriate package installation from Marketplace
JE-504023.3Apache Python is missing in the list of supported templates for the Git Push Deploy add-on
JE-509053.3Incorrect Apache Python template is used within the DjangoCMS package 
JE-509623.3Old installations of the Let’s Encrypt add-on cannot update SSL certificates
JE-515753.3Obsolete versions of Joomla and PHP are used in the appropriate package
JE-507055.0.5Default firewall rules are not applied to the Elastic VPS stacks
JE-509865.0.5Error upon adding Apache balancer and removing application server in a single change topology action
JE-509875.0.5Error upon adding HAProxy balancer and removing application server in a single change topology action
JE-510395.0.5Error upon adding LiteSpeed ADC balancer and removing application server in a single change topology action
JE-503205.4Email notification should be skipped when scaling MariaDB nodes in WordPress Cluster
JE-510805.4Galera cluster in the WordPress Cluster fails when more than half of MariaDB nodes are removed at once
JE-514075.4Database auto-clustering fails for the 10.4.10 and 10.4.9 MariaDB versions
JE-508825.7-4Default firewall rules are not applied on the Debian 10 VPS stacks

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Software Stack Versions

The software stack provisioning process is independent of the platform release, which allows new software solutions to be delivered as soon as they are ready. Herewith, due to the necessity to adapt and test new stack versions, there is a small delay between software release by its respective upstream maintainer and integration into Jelastic PaaS.

The most accurate and up-to-date list of the certified software stack versions can be found on the dedicated documentation page.

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Bug Fixes

In the table below, you can see the list of bug fixes applied to the platform starting from Jelastic 5.8 release:

Jelastic 5.8
JE-28613An error occurs if collaboration is unlinked simultaneously by collaborator and account owner
JE-41731Error during the Storage node restart if the /etc/exports config includes the * character
JE-42909Incorrect alignment for images within the minimized installation frames
JE-44207An unhandled error occurs when trying to install an add-on as a collaborator immediately after access rights change from admin to view ones
JE-44309Pop-up notification about the maximum number of allowed public IPs is displayed twice
JE-45466Environments in the creation status should be considered by validation, restricting new nodes/environments creation if the limit is reached
JE-45945Icon for the Golang stack is cropped in a tooltip at the Exports section of the file manager
JE-45983Application installation from Marketplace fails in case of signing out during the process
JE-46112Additional ProxySQL nodes that will be created due to auto-clustering should be considered by validation, restricting new nodes/environments creation if the limit is reached
JE-46290Email length validation is absent in the dashboard sign up form
JE-46491The drop-down list for nodes should be updated automatically upon an environment topology change
JE-46506Incorrect size of the Golang icon in the Quotas & Pricing > Pricing > Software window
JE-46678Error during login to the dashboard on Mac OS
JE-47335The Click to Copy tooltip should be the same for all the similar buttons in the dashboard
JE-47418Environment migration from the region that was disabled for an account by the hosting provider should be allowed
JE-47579Text in the tooltip for the name of the installed add-on is encoded
JE-48327Incorrect notification is displayed in topology wizard when enabling auto-clustering with minimum requirements higher than account limits
JE-48371Notification about insufficient account limits for VPS creation should be displayed immediately after node selection in the topology wizard
JE-48405An error occurs while downloading files from the dashboard
JE-48411The "Cannot read property 'className' of undefined" error occurs while working in the dashboard
JE-48412The "Cannot read property 'application' of undefined" error occurs while working in the dashboard
JE-48413The "TypeError: c is null" error occurs while working in the topology wizard
JE-48553The Add-Ons button should be available for all node types
JE-48704Stack name and engine version are cropped for a second after opening the topology wizard
JE-48761Additional DAS nodes that will be created due to auto-clustering should be considered by validation, restricting new nodes/environments creation if the limit is reached
JE-48876The "java.lang.NullPointerException" error occurs while trying to delete an environment
JE-48914The "java.lang.NullPointerException" error occurs while trying to create an environment
JE-48940Custom firewall rules on the layer should be copied to the new containers added through horizontal scaling
JE-48949An external IP address is missing in firewall rules when the environment with scaled nodes (with public IPs) is added as a source
JE-49247The Apply button at the Edit Endpoints frame should be disabled until some changes are performed
JE-49322An application from Marketplace should be automatically installed in one of the available regions if there are problems with the one selected by default, and the appropriate selector is disabled by hosting provider
JE-49324The region related information should be hidden/displayed based on whether environments on account (including the ones created through collaboration) are all from the same or different regions
JE-49325An incorrect region name is displayed for collaborators after creating an environment under the owner in the otherwise unavailable region
JE-49331Search for custom Docker images in topology wizard does not work when the “/” character is used
JE-49455The 50x error handler on Shared Load Balancer does not work correctly over HTTPS
JE-49458Special symbols should be validated when configuring mount points via the dashboard
JE-49477Incorrect notifications are displayed in topology wizard when account limits are lower than a stack minimum requirements
JE-49478Special symbols should be validated in the AddMountPoint API requests
JE-49565The Auto-Clustering switcher becomes visually editable in topology wizard after disabling and then enabling a layer with obligatory or already configured clusterization
JE-49594Cloudlets’ details bubble is misconnected with the slider in topology wizard when only reserved or dynamic cloudlets are specified
JE-49757Whitespaces should be automatically trimmed at the start and end of the sourceIp and targetIp parameters of the SwapExtIp API method
JE-49802The environment groups list should become scrollable in case of the vast number of environments on the account
JE-49892The 500 error page periodically appears when working with an external domain bound to an environment
JE-49935Error when running API scripts via token and without the user agent header
JE-50046A master node should always be selected by default when working with a layer (e.g. Web SHH, Logs, Configs)
JE-50105Incorrect icon size for the Golang stack in the Statistics tab
JE-50151Only limitations and permissions of the environment owner should be considered during the validation of a new environment creation or JPS installation as a collaborator
JE-50175Disk space is not changed when modified simultaneously with the cloudlets count
JE-50291The dashboard notification about insufficient account limits during public IP addition disappears too fast
JE-50322The jem service start command responds with "result":"0" even upon failure
JE-50414Error while connecting to the container via Web SSH
JE-50506Environments with Cyrillic symbols in the name cannot be cloned
JE-50513The required tag should be provided via the image parameter when adding node via API
JE-50529The iptables-restore command responds with "result":"0" even upon failure
JE-50601The current page number is aligned incorrectly in the Marketplace window and Docker section of the wizard when working in the Firefox browser
JE-50614A length of the layer alias should be validated in the topology wizard
JE-50670The deletion process gets stuck if it is called for the environment with the Settings panel opened
JE-50678The dashboard language is changed to English each time Jelastic WHMCS UI is opened
JE-50730The "Cannot set property 'disabled' of undefined" error occurs while working with the Logs panel and application installation dialogs
JE-50732Elastic VPS nodes cannot be created due to incorrect validation of account limitations
JE-50772Error when simultaneously removing application server and at least two database nodes
JE-50775Disrupted layout in topology wizard if a new node is added while the SSL tab is active
JE-50791Incorrect alignment for the image of the Env Start/Stop Scheduler add-on within the minimized installation frame
JE-50797NFS exports are removed incorrectly upon target nodes scaling in
JE-50817Buttons are aligned incorrectly within master add-on for Kubernetes Cluster
JE-50839A length of the environment group name should be validated in the Add Group dialog at the dashboard
JE-50841The latest tag is selected by default (even if it is not available) when adding the same image to multiple layers at the Docker tab of the topology wizard
JE-50872A notification about permanent data loss should be displayed in the topology wizard upon deselecting database or storage layers
JE-50932A notification about server capacities enlargement should be displayed for billing users upon selecting a maximum number of cloudlets per node in the topology wizard
JE-50937A notification about the maximum allowed number of public IPv6 is not displayed in the topology wizard if the similar one was already provided for IPv4
JE-50941A warning notification and confirmation dialog should be displayed when trying to remove additional nodes that are required by Auto-Clustering
JE-50970The Try Again button is multiplied in the environment creation error notification on each successive failure
JE-51013Removal of the files uploaded to the platform can affect other data
JE-51024An unhandled error occurs when installing JPS manifest with auto-clustering enabled for a tag where it is not supported
JE-51052The SetExtIpCount API method is called at the dashboard instead of the AttachIp one
JE-51072An unnecessary notification is displayed in the topology wizard when disabling a layer where the maximum allowed cloudlets count is set
JE-51088The loading spinner image is cropped in the dashboard
JE-51101Environments from the sub-groups should be displayed in the parent ones since the creation
JE-51108If the baseUrl value is not defined explicitly in the JPS manifest, it should be provided automatically for the package
JE-51122A directory cannot be accessed on the client node after mounting from the Shared Storage cluster
JE-51130Files cannot be exported over NFS from the Debian-based containers
JE-51145The Docker tab in the topology wizard becomes inactive after switching to the different one during the image selection
JE-51146The More details links for the Docker images in the topology wizard work incorrectly
JE-51268The incorrect output is displayed for the checkdomain job if improper SSL certificates were provided for the environment
JE-51297Files cannot be mounted over NFS to the Debian VPS
JE-51306Redeployment failure due to immutable files in the containers
JE-51319The ability to mount subdirectories of other mounts should be restricted
JE-51363Incorrect data format in the response of the CreateEnvironment API method
JE-51404Long text in the environment Status column of the dashboard is cropped incorrectly
JE-51411The "java.lang.NullPointerException" error occurs when exporting billing history if some fields are null
JE-51425Application deployment fails if the project directory on the application server is mounted from the Shared Storage node
JE-51478Redeployment failure due to the low prepool timeout
JE-51484An empty hint is displayed for the Extended Access token
JE-51516An error occurs when adjusting the number of public IP addresses for the environment via the topology wizard
JE-51567Typo in the Storage & File Manager category name in the Marketplace
JE-51785The InstallApp task hangs during the MySQL Cluster package installation
JE-51996The environment domain section of the topology wizard becomes uneditable after clicking the Try Again button after environment creation failure

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