Changes for page Volume Mapping (On-premise)
Last modified by Erik Bakker on 2024/08/26 12:37
From version 32.2
edited by Erik Bakker
on 2022/06/10 13:32
on 2022/06/10 13:32
Change comment:
Update document after refactoring.
To version 50.1
edited by Erik Bakker
on 2022/10/31 15:24
on 2022/10/31 15:24
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... ... @@ -1,11 +1,13 @@ 1 1 {{container}}{{container layoutStyle="columns"}}((( 2 -n some cases, the input you receive or the output that you need to send to an external party cannot handle all characters or the input or output is written with the help of a character set. In this microlearning, we will learn how you can define the character set for file-based connectivity to ensure that you can process and deliver files according to the specifications. 3 3 4 -Should you have any questions, please contact [[academy@emagiz.com>>mailto:academy@emagiz.com]]. 3 +{{warning}} 4 +Please note that this microlearning is for the new monitoring stack only. 5 +{{/warning}} 5 5 6 -* Last update: May 31th, 2021 7 -* Required reading time: 7 minutes 7 +When you need to read and write files from an on-premise disk, you need to know the path in which the data is stored and make sure that the docker container in your runtime(s) running has access to this path. There are several ways of dealing with this challenge. First, this microlearning will discuss the various alternatives and best approaches in these scenarios. 8 8 9 +Should you have any questions, please contact [[academy@emagiz.com>>mailto:academy@emagiz.com]]. 10 + 9 9 == 1. Prerequisites == 10 10 11 11 * Basic knowledge of the eMagiz platform ... ... @@ -12,56 +12,108 @@ 12 12 13 13 == 2. Key concepts == 14 14 15 -This microlearning centers around learning how to definethecharactersettoensurethateMagizprocessestheinformation correctly.17 +This microlearning centers around learning how to set up your volume mapping correctly so you can exchange file-based data on-premise. 16 16 17 -By characterset, we mean:Thecompositenumberofdifferent charactersthat arebeingusedandsupportedbycomputersoftwarendhardware.Itconsists ofodes,bitpatterns,ornaturalnumbers usedin definingsomeparticular character.19 +By volume mapping, we mean: Creating a configuration through which the docker container can read and write data on a specific path on an on-premise machine. 18 18 19 -* Some external system talk in a different character set 20 -* eMagiz talks in default UTF-8 as a character set and assumes everyone else also does this 21 -* In cases of mismatch correct is at the point where you talk with the other system (i.e. entry or exit) 21 +There are several options for volume mapping for your on-premise machine. 22 +* Volume 23 +* Bind mount 24 +* Temporary file system 25 +* Named pipe 22 22 23 -== 3. Characterset==27 +== 3. Volume Mapping (On-premise) == 24 24 25 - Insomecases,theinputyoureceiveortheoutputthatyou need tosendtoanexternalparty cannothandleallcharactersor the inputoroutputiswrittenwith thehelpof a characterset.Inthis microlearning,we willlearn how you candefinethecharactersetfor file-basedconnectivitytoensurethatyou canprocessand deliver files accordingto thepecifications.29 +When you need to read and write files from an on-premise disk, you need to know the path in which the data is stored and make sure that the docker container in your runtime(s) running has access to this path. There are several ways of dealing with this challenge. First, this microlearning will discuss the various alternatives and best approaches in these scenarios. 26 26 27 -Sometimes external systems only talk in a specific character set. To ensure that all the data is properly communicated between eMagiz and the other system we need to make sure that we define which character set that is so we can tell it to eMagiz via a component. That way eMagiz will deviate from its default (i.e. UTF-8) and will process the file according to that different character set. In practice, we mainly see windows-1252 as an alternative that pops up once in a while. In various components that deal with file handling, you can define the character set on which eMagiz should act. Examples of such components are: 31 +There are several options for volume mapping for your on-premise machine. 32 +* Volume 33 +* Bind mount 34 +* Temporary file system 35 +* Named pipe 28 28 29 -- File to string transformer 30 -- Flat file to XML transformer 31 -- File outbound channel adapter 37 +Below we will explain the differences between the various options available for your volume mapping. But before we do, we first explain how to set up this configuration within eMagiz. Then, you must navigate to Deploy -> Architecture on the model level. In this overview, you can access the Volume mapping per runtime deployed on-premise. To do so, you can right-click on the runtime to access the context menu. 32 32 33 - Inll thesecomponents you havetheoptiontodefinethe characterset within the Advanced tabof the component. In this microlearning, we will use the File tostring transformer toillustratehowthat will look.39 +[[image:Main.Images.Microlearning.WebHome@novice-file-based-connectivity-volume-mapping-on-premise--volume-option-context-menu.png]] 34 34 35 - [[image:Main.Images.Microlearning.WebHome@novice-file-based-connectivity-characterset--characterset-configuration.png]]41 +When you click this option, you will see the following pop-up. In this pop-up, you can define the machine-level and runtime-level volumes. More on that later. This is the starting point for configuring your volume mapping. We will walk through each available option and explain how they work and should be configured. 36 36 37 - In this field, you can define the character set of your choice. Tomakethis work in eMagiz youneed to navigateto the Create phase of eMagiz and open the entry flow in which you want toretrieve the file toa certainlocation. Within thecontext of this flow, we need toadd functionality that will ensure that the correct character set is used. To do so first enter "Start Editing" mode on flow level.After thatopen, the File to string transformer,navigate tothe Advanced tab, andfill in thecorrect characterset. After you havedefined thecorrect character set the only thing leftto dois to Save the component. See the suggested additionalreadings sectionon the complete listof character sets that are supported by Java 8.43 +[[image:Main.Images.Microlearning.WebHome@novice-file-based-connectivity-volume-mapping-on-premise--volume-mapping-pop-up.png]] 38 38 39 - Congratulationsyouhavesuccessfullylearnedhowtospecify the characterset.45 +{{info}}Note that you should be in "Start editing" mode to make any changes to the configuration of your volume mapping.{{/info}} 40 40 47 +=== 3.1 Volume === 48 + 49 +The first Type available to you is Volume. With this option, you create one or more folders on Docker relevant to that runtime to read and write **persistent** data. To configure this Type, you need to link the runtime volume to a machine volume you can create within the same pop-up. This means you can re-use a "Machine volume" over multiple runtimes (i.e., containers). 50 + 51 +So, we first open the tab called "Machine volume." Then, by pressing the "New" button, we can define a new "Machine volume." In the pop-up that follows, we can specify the name of a machine volume and tell whether the Volume already exists on your docker installation or not. 52 + 53 +[[image:Main.Images.Microlearning.WebHome@novice-file-based-connectivity-volume-mapping-on-premise--machine-volumes-configuration.png]] 54 + 55 +Once you have done so, we press "Save" and switch back to the "Runtime volumes" tab. Then, we push the "New" button to create a new "Runtime volume." In the following pop-up, we first need to select the Type we want to use. For this example, we use the Type called "Volume." Based on your selection, the relevant input fields will change. 56 + 57 +[[image:Main.Images.Microlearning.WebHome@novice-file-based-connectivity-volume-mapping-on-premise--runtime-volumes-configuration-type-volume.png]] 58 + 59 +The first thing we need to select is the "Machine volume." Once we have chosen our "Machine volume," we must set the Target specific for this runtime. This target defines the second part of the path to which the runtime will gain access. For example, when you fill in "/target", we can combine this with the "Machine volume" name to arrive at the correct directory from which eMagiz needs to read data (or write data to). So in our case, this would be "/file-directory/target." 60 + 61 +The last setting we need to configure is to define which rights we will grant our runtime on the Volume we are creating. The default setting is read/write rights for the runtime, which is sufficient in most cases. The result of following these steps will be the following. 62 + 63 +[[image:Main.Images.Microlearning.WebHome@novice-file-based-connectivity-volume-mapping-on-premise--runtime-volumes-configuration-type-volume-filled-in.png]] 64 + 65 +{{warning}}Note that when you use the Volume option, the external system with which you exchange data on-premise via a file-based method needs to be able to write or read the data from the Volume (i.e., directory) you have configured in Docker. Should this be a problem, the Bind mount alternative discussed below should be considered.{{/warning}} 66 + 67 +=== 3.2 Bind mount === 68 + 69 +An alternative option to read and write **persistent** data is to use the "Bind mount" option. In general, we advise using the "Volume" option because they have better performance, and bind mounts depend on the host machine's directory structure and OS. However, only some external systems can adapt to this that easily. For example, the "Bind mount" option can interest your use case. 70 + 71 +[[image:Main.Images.Microlearning.WebHome@novice-file-based-connectivity-volume-mapping-on-premise--runtime-volumes-configuration-type-bind-mount.png]] 72 + 73 +To configure a "Bind mount," you need to define a source and a target directory linked to each other. The source directory represents the directory on your local system (that might already be used currently to exchange files). The target directory defines a directory on your docker installation that the runtime can access. 74 + 75 +{{warning}}Note that when the source directory does not exist, the runtimes cannot be deployed correctly.{{/warning}} 76 + 77 +[[image:Main.Images.Microlearning.WebHome@novice-file-based-connectivity-volume-mapping-on-premise--runtime-volumes-configuration-type-bind-mount-filled-in.png]] 78 + 79 +{{info}}Note that when you use this option, your directory reference in your flow should refer to the "target" directory configured here.{{/info}} 80 + 81 +=== 3.3 Temporary file system === 82 + 83 +The temporary file system option is for you if you do not want to work with **persistent** data but require **non-persistent** data. This way, you can increase the container's performance by avoiding writing into the container's writable layer. 84 + 85 +[[image:Main.Images.Microlearning.WebHome@novice-file-based-connectivity-volume-mapping-on-premise--runtime-volumes-configuration-type-temp-file-storage.png]] 86 + 87 +To configure this option, you need a target location. On top of that, you can define the maximum size of the temporary file system. 88 + 89 +[[image:Main.Images.Microlearning.WebHome@novice-file-based-connectivity-volume-mapping-on-premise--runtime-volumes-configuration-type-temp-file-storage-filled-in.png]] 90 + 91 +{{warning}}We strongly advise you to define this number so that you can limit the potential impact this solution can have on the stability of your machine.{{/warning}} 92 + 93 +=== 3.4 Named pipe === 94 + 95 +The named pipe option can be selected, but we yet have to see a valid use case within the context of eMagiz for using this option. Therefore we won't discuss this option further in this microlearning. 96 + 41 41 == 4. Assignment == 42 42 43 - Configureanentryinwhich youdefinethecomponentandconfigurationneededtoprocessafileon aper-linebasis.44 -This assignment can be completed with the help of the (Academy) project thatyouhavecreated/used in the previous assignment.99 +Navigate to Deploy -> Architecture and look at the Volume mapping options, read the help texts, and play around with the settings (if it is not a customer environment). 100 +This assignment can be completed with the help of the (Academy) project you created/used in the previous assignment. 45 45 46 46 == 5. Key takeaways == 47 47 48 -* Some external system talk in a different character set 49 -* eMagiz talks in default UTF-8 as a character set and assumes everyone else also does this 50 -* In cases of mismatch correct is at the point where you talk with the other system (i.e. entry or exit) 51 -* eMagiz provides several components within which you can define the character set 104 +* File-based communication on-premise changes in the new runtime architecture 105 +* There are two ways to store **persistent** data 106 + ** Volume 107 + ** Bind mount 108 +* The Volume option is considered the best alternative because they have better performance, and bind mounts are dependent on the directory structure and OS of the host machine 109 +* When you want to deal with **non-persistent** data, the Temporary file storage option is the way to go. 52 52 53 53 == 6. Suggested Additional Readings == 54 54 55 -If you are interested in this topic and want more information on itplease read the help text provided by eMagizand read the following links:113 +If you are interested in this topic and want more information, please read the help text provided by eMagiz. 56 56 57 -* https://docs.oracle.com/javase/8/docs/technotes/guides/intl/encoding.doc.html 58 -* https://www.techopedia.com/definition/941/character-set 59 -* https://www.smashingmagazine.com/2012/06/all-about-unicode-utf8-character-sets/ 60 - 61 61 == 7. Silent demonstration video == 62 62 63 -This video demonstrates how you could have handled the assignment and gives you somecontext onwhat you have just learned.117 +This video demonstrates how you could have handled the assignment and gives context to what you have just learned. 64 64 65 - {{video attachment="novice-file-based-connectivity-characterset.mp4" reference="Main.Videos.Microlearning.WebHome"/}}119 +TBA 66 66 67 67 )))((({{toc/}}))){{/container}}{{/container}}