What is BIG-IP Next?
BIG-IP Next LTM and BIG-IP Next WAF hit general availability back in October, and we hit the road for a tour around North America for its arrival party! Those who attended one of our F5 Academy sessions got a deep-dive presentation into BIG-IP Next conceptually, and then a lab session to work through migrating workloads and deploying them. I got to attend four of the events and discuss with so many fantastic community members what's old, what's new, what's borrowed, what's blue...no wait--this is no wedding! But for those of us who've been around the block with BIG-IP for a while, if not married to the tech, we definitely have a relationship with it, for better and worse, right? And that's earned. So any time something new, or in our case "Next" comes around, there's risk and fear involved personally. But don't fret. Seriously. It's going to be different in a lot of ways, but it's going to be great. And there are a crap-ton (thank you Mark Rober!) of improvements that once we all make it through the early stages, we'll embrace and wonder why we were even scared in the first place. So with all that said, will you come on the journey with me? In this first of many articles to come from me this year, I'll cover the high-level basics of what is so next about BIG-IP Next, and in future entries we'll be digging into the tech and learning together. BIG-IP and BIG-IP Next Conceptually - A Comparison BIG-IP has been around since before the turn of the century (which is almost old enough to rent a car here in the United States) and this year marks the 20 year anniversary of TMOS. That the traffic management microkernel (TMM) is still grokking like a boss all these years later is a testament to that early innovation! So whereas TMOS as a system is winding down, it's heart, TMM, will go on (cue sappy Celine Dion ditty in 3, 2, 1...) Let's take a look at what was and what is. With TMOS, the data plane and control plane compete for resources as it's one big system. With BIG-IP, the separation of duties is more explicit and intentionally designed to scale on the control plane. Also, the product modules are no longer either completely integrated in TMM or plugins to TMM, but rather, isolated to their own container structures. The image above might convey the idea that LTM or WAF or any of the other modules are single containers, but that's just shown that way for brevity. Each module is an array of containers. But don't let that scare you. The underlying kubernetes architecture is an abstraction that you may--but certainly are not required to--care about. TMM continues to be its awesome TMM self. The significant change operationally is how you interact with BIG-IP. With TMOS, historically you engage directly with each device, even if you have some other tools like BIG-IQ or third-party administration/automation platforms. With BIG-IP Next, everything is centralized on Central Manager, and the BIG-IP Next instances, whether they are running on rSeries, VELOS, or Virtual Edition, are just destinations for your workloads. In fact, outside of sidecar proxies for troubleshooting, instance logins won't even be supported! Yes, this is a paradigm shift. With BIG-IP Next, you will no longer be configuration-object focused. You will be application-focused. You'll still have the nerd-knobs to tweak and turn, but they'll be done within the context of an application declaration. If you haven't started your automation journey yet, you might not be familiar with AS3. It's been out now for years and works with BIG-IP to deploy applications declaratively. Instead of following a long pre-flight checklist with 87 steps to go from nothing to a working application, you simply define the parameters of your application in a blob of JSON data and click the easy button. For BIG-IP Next, this is the way. Now, in the Central Manager GUI, you might interact with FAST templates that deliver a more traditional view into configuring applications, but the underlying configuration engine is all AS3. For more, I hosted aseries of streams in December to introduce AS3 Foundations, I highly recommend you take the time to digest the basics. Benefits I'm Excited About There are many and you can read about them on the product page on F5.com. But here's my short list: API-first. Period. BIG-IP had APIs with iControl from the era before APIs were even cool, but they were not first-class citizens. The resulting performance at scale requires effort to manage effectively. Not only performance, but feature parity among iControl REST, iControl SOAP, tmsh, and the GUI has been a challenge because of the way development occurred over time. Not so with BIG-IP Next. Everything is API-first, so all tooling is able to consume everything. This is huge! Migration assistance. Central Manager has the JOURNEYS tool on sterroids built-in to the experience. Upload your UCS, evaluate your applications to see what can be migrated without updates, and deploy! It really is that easy. Sure, there's work to be done for applications that aren't fully compatible yet, but it's a great start. You can do this piece (and I recommend that you do) before you even think about deploying a single instance just to learn what work you have ahead of you and what solutions you might need to adapt to be ready. Simplified patch/upgrade process. If you know, you know...patches are upgrades with BIG-IP, and not in place at that. This is drastically improved with BIG-IP Next! Because of the containerized nature of the system, individual containers can be targeted for patching, and depending on the container, may not even require a downtime consideration. Release cycle. A more frequent release cadence might terrify the customers among us that like to space out their upgrades to once every three years or so, but for the rest of us, feature delivery to the tune of weeks instead of twice per year is an exciting development (pun intended!) Features I'm Excited About Versioning for iRules and policies. For those of us who write/manage these things, this is huge! Typically I'd version by including it in the title, and I know some who set release tags in repos. With Central Manager, it's built-in and you can deploy iRules and polices by version and do diffs in place. I'm super excited about this! Did I mention the API? On the API front...it's one API, for all functionality. No digging and scraping through the GUI, tmsh, iControl REST, iControl SOAP, building out a node.js app to deploy a custom API endpoint with iControl LX, if even possible with some of the modules like APM or ASM. Nope, it's all there in one API. Glorious. Centralized dashboards. This one is for the Ops teams! Who among us has spent many a day building custom dashboards to consume stats from BIG-IPs across your org to have a single pane of glass to manage? I for one, and I'm thrilled to see system, application, and security data centralized for analysis and alerting. Log/metric streaming. And finally, logs and metrics! Telemetry Streaming from the F5 Automation Toolchain doesn't come forward in BIG-IP Next, but the ideas behind it do. If you need your data elsewhere from Central Manager, you can set up remote logging with OpenTelemetry (see the link in the resources listed below for a first published example of this.) There are some great features coming with DNS, Access, and all the other modules when they are released as well. I'll cover those when they hit general availability. Let's Go! In the coming weeks, I'll be releasing articles on installation and licensing walk-throughs for Central Manager and the instances, andcontent from our awesome group of authors is already starting to flow as well. Here are a few entries you can feast your eyes on, including an instance Proxmox installation: For the kubernetes crowd, BIG-IP Next CNF Solutions for RedHat Openshift Installing BIG-IP Next Instance on Proxmox Remote Logging with BIG-IP Next and OpenTelemetry Are you ready? Grab a trial licensefrom your MyF5 dashboard and get going! And make sure to join us in the BIG-IP Next Academy group here on DevCentral. The launch team is actively engaged there for next-related questions/issues, so that's the place to be in your early journey! Also...if you want the ultimate jump-start for all things BIG-IP Next, join usatAppWorld 2024 in SanJose next month!Getting Started with BIG-IP Next: Fundamentals
In the first article in this series, I introduced BIG-IP Next at the 50,000-foot (or meter for the saner parts of the world...) level. In this article, I will get closer to the brass tacks of tackling some technical tasks, but still hover over the trenches so I can lay a little more groundwork into the components of the BIG-IP Next: Central Manager and instances. Central Manager The Central Manager is the brains of the operation, and aptly named since it is the centralized location where most management tasks regarding BIG-IP Next instances will coalesce. Gone are the days of logging into BIG-IP devices. It won't be supported! Also gone are the days of creating a node to create a pool and creating some profiles and iRules and snat pools and then slapping all that together on a virtual server. That's not to say that some shared objects won't exist--they will, or at least they can. In classic BIG-IP, the virtual server was the "top dog" from an object perspective unless you already have used iApps or AS3 declarations, in which case those options are similar to what we have with BIG-IP Next, where the application service wears the crown. Everything about that application service is defined within that context, including multiple virtual servers where necessary. That will be done in the GUI via application templates, or via the API with AS3 directly or via FAST templates. The included http application template in the Central Manager GUI allows for a lot of checkbox functionality, but accessing some of the functionality you may be used to will require additional or edited templates. Beyond managing the instances and the application services, you'll also be able to manage your security policies, attack and bot signature security services updates and monitor/report on deployed policies. And of course, you'll be able to manage users and performance maintenance on the Central Manager system itself. There is no license required for Central Manager; you can download it now and get started with your discovery as soon as you're ready! I have it installed on my iMac in VMware Fusion currently, and I'll be writing articles in the next couple of weeks on installation for Fusion and ESXi. Instances Whereas Central Manager is the brain of the BIG-IP Next operation, the instances are the brawn. They can take the form of a tenant on F5 VELOS or rSeries hardware, a KVM and/or VMware Virtual Edition for private clouds and coming soon, or a Virtual Edition on select public clouds. (Note: Instances can also take the form of CNFs in headless kubernetes deployments, but that won't be addressed in this series.) Onboarding instances is not as complex a process as setting up classic BIG-IP because day one operations are not intermingled with day two and beyond. You define the CPU, memory, disk, and network resources you need depending on what modules you're licensing for use and fire it up. Once that candle is lit, you run through a few onboarding steps with either a postman collection or write an onboarding script to walk through those steps for you. That's it for setup on the instances; the rest of the process is managed on Central Manager. Limited access will be available on instances for troubleshooting through a sidecar proxy, but even that is configured and managed through Central Manager. Instances are licensed. Make sure to check with your account team; you might already be entitled to BIG-IP Next licensing, but a conversion transaction will be necessary. For lab discovery, you can generate a trial license on MyF5 to get started! I'll cover installation on KVM, Fusion, and ESXi in the next couple of weeks. Leon Seng has already written up installing a BIG-IP Next instance on Proxmox! "Next" Up Alrighty then! Enough talk, Jason, let's do something! I hear you, I hear you...starting next week, I'll be releasing incremental steps into the installation, onboarding, licensing, upgrading, backup/restore, etc, of both the Central Manager and the instances. Here's the general workflow I'll follow: Ignore the platform. I'll step through all the support versions I have access to and keep placeholders to circle back as more platforms are supported. I hope to see you all at AppWorld, but if not, don't be a stranger here on DevCentral, reach out any time!Create F5 BIG-IP Next Instance on Proxmox Virtual Environment
If you are looking to deploy a F5 BIG-IP Next instance on Proxmox Virtual Environment (henceforth referred to as Proxmox for the sake of brevity), perhaps in your home lab, here's how: First, download the BIG-IP Next OVA File from MyF5 Downloads. Copy the OVA file to your Proxmox host. I am using SCP in the example below. local $ scp BIG-IP-Next-20.0.1-2.139.10+0.0.136.ovf root@proxmox:~/ On the Proxmox host, extract the contents in the OVA file: proxmox $ cd ~/ proxmox $ tar -xvf BIG-IP-Next-20.0.1-2.139.10+0.0.136.ova BIG-IP-Next-20.0.1-2.139.10+0.0.136.ovf BIG-IP-Next-20.0.1-2.139.10+0.0.136.mf BIG-IP-Next-20.0.1-2.139.10+0.0.136.cert BIG-IP-Next-20.0.1-2.139.10+0.0.136-disk1.vmdk Then, run the command below to create a virtual machine (VM) from the extracted OVF file. <vm_id> should be an unused ID on Proxmox. # qm importovf <vm_id> BIG-IP-Next-20.0.1-2.139.10+0.0.136.ovf local-lvm proxmox $ qm importovf 112 BIG-IP-Next-20.0.1-2.139.10+0.0.136.ovf local-lvm Logical volume "vm-112-disk-0" created. transferred 0.0 B of 80.0 GiB (0.00%) transferred 819.2 MiB of 80.0 GiB (1.00%) transferred 1.6 GiB of 80.0 GiB (2.00%) <output truncated> transferred 80.0 GiB of 80.0 GiB (100.00%) transferred 80.0 GiB of 80.0 GiB (100.00%) You should now see a new VM created on the Proxmox GUI. Before starting the VM, we need to attach a few hardware components to the VM: a Network Device for the management interface one or more additional Network Devices for the data plane interfaces (e.g. internal and external). Note that the data plane Network Devices must be of VirtIO model Optionally, you could also configure CLI access with the following instructions Finally, start the VM. This will take a few minutes. If CLI access is available, open up the console and run kubectl get pods until you can see all pods are ready. The BIG-IP Next VM is now ready to be onboarded per instructions found here.Embracing AS3: Foundations
Many F5 teams are on the North American leg of the F5 Academy BIG-IP Next Roadshow, where we are sharing the BIG-IP story, where we're going with it, and then diving into some hands-on labs with the attendees. I got to attend in person in Kansas City, St. Louis, Cincinnati, and Columbus, and talked with customers at all stages of the automation journey. Some haven't automated much of anything. Some have been using a variety of on-/off-box scripts, and some are all-in, baby! AS3 is a critical component of BIG-IP Next, but it has also been around for several years for BIG-IP and can be learned and implemented ahead of your transition to BIG-IP Next. So over the next three weeks, I'm going to host a five-part live-stream series on AS3 Foundations. There are a lot of resources I'll link to and key in on during the event for reference and further study. Here are the shows I'm doing with descriptions: Beyond Imperatives—What the heck is AS3? (Dec 4@ 9am PST) In this first episode, I'll cover the history of automation on BIG-IP, the differences between imperative and declarative models, and the basics of AS3 from data structure and systems architecture perspectives. Top 10 Features to Know in the VSCode F5 Extension (Dec 7@ 12pm PST) Next, special guest Ben Novak, author of the F5 Extension for VSCode, will join me to dig into the features most important to know and learn to use for understanding how to take stock BIG-IP configurations and turn applications into declarations. Migrating and Deploying Applications in VSCode (Dec 14@ 12pm PST) In this episode, armed with the knowledge I learned from Ben in the last episode, I'll finally get to the brass tacks of AS3! I'll review diagnostics and migrate several applications from standard configuration to AS3 declarations and deploy a few. For migrating active workloads, I'll discuss the steps necessary to reduce transition impact. Creating New Apps and Using Shared Objects (Dec 18@ 9am PST) I've always tried to alter existing things before creating new things with tech, and this is no different. Now that I have a few migrations under my belt, I'll attack a net-new application and I'll look at shared objects and how and when to use them. Best Practices (Dec 21@ 12pm PST) Finally, I'll close this series with a look at several best practices when working with AS3. The conclusion to this series, though, is hopefully just the stepping off point for everyone new to AS3, and we'll be able to continue the conversation right here on DevCentral.How I did it - "Remote logging with F5 BIG-IP Next and OpenTelemetry"
In this installment of “How I Did it” we’ll be diving into the next generation of BIG-IP software, F5 BIG-IP Nextand how—by using OpenTelemetry-organizations can now effortlessly integrate BIG-IP Next with an extensive array of third-party analytics and visualization tools. A little background While at its core, BIG-IP Next is still the same BIG-IP that F5 customers know and trust, the platform has been modernized and optimized for the future. With respect to the topic at hand,it’s worth noting that Central Manager itself provides robust native application/security reporting and visibility (see below). With that said, many enterprises prefer to aggregate their various telemetry streams onto a single platform. To that end, BIG-IP NextusesOpenTelemetry for telemetry streaming within the Next infrastructure as well as for data exportation tothird-partyanalytics tools. OpenTelemetry (OTEL) is a set of APIs, libraries, agents, instrumentation, and instrumentation standards designed to provide observability for applications through the generation, collection, and description of telemetry data such as traces, metrics, and logs. The Otel collector which is a component of the OTEL toolkit provides a proxy to receive, process and export telemetry data including traces, metrics, and logs to a variety of third-party analytics platforms.While many analytics and observability vendors have their own flavor of the collector available, I used the community version, 'collector-contrib'running on a Linux instance for this demonstration. The contrib version affords me the ability to specify a variety of third-party vendor exporters. According toJames McQuivey, PhDof Forrestera 1-minute video is equivalent to 1.8 million words. With that in mind, rather than filling up this page with a little more than 12.6 million words- minus a thousand for each picture—documenting each step here, I've included a short, (a little over 7 minutes) video walkthrough of the configuration process. For a deeper look at the technologies involved, check out the links below. Alright, let's grab some popcorn and watch a movie.😀 Additional links F5 BIG-IP Next Introduction F5 BIG-IP Next Documentation F5 BIG-IP Next API Specification F5 BIG-IP Next Remote Logging API Introducing OpenTelemetry OpenTelemetry Collector OpenTelemetry Collector Contrib repo Analytics Vendors Dashboard repoGetting Started with BIG-IP Next: Migrating an Application Workload
So far in this article series, the focus has been completely on the operational readiness of BIG-IP Next as a system. In this article, I'll walk through migrating an application currently supported by my classic BIG-IP running TMOS version 15.1.x. The application is just a simple instance of an NGINX web server fronted on LTM with basic load balancing, TLS offloading, and a basic WAF policy. There are a lot of screenshots in this article, which might seem overwhelming. Doing your own walkthrough, however, will put your mind at ease; it actually moves pretty quickly in realtime. Existing Application Workload on TMOS We'll start with the GUI representation of the application workload. It is secured with TLS, which is offloaded at the BIG-IP with a clientssl profile and not re-encrypted to the server. There are custom TCP and HTTP profiles defined as well as the aforementioned custom clientssl profile. Snat automap is enabled, and a specific VLAN is configured to allow connections. On the security tab, an application security policy is enabled, and the log illegal requests log profile is enabled as well. Finally, under resources, the default pool is defined and a policy is in place to map requests to the applied security policy. On the CLI, that virtual server along with all the other referenced BIG-IP objects are defined in the tmsh version of that configuration. ltm virtual nginx-vip-tls { destination 172.16.101.50:https ip-protocol tcp mask 255.255.255.255 policies { asm_auto_l7_policy__nginx-vip-tls { } } pool nginx-pool profiles { ASM_testpol { } cssl.TestSuite { context clientside } customHTTP { } customTCP { } websecurity { } } security-log-profiles { "Log illegal requests" } source-address-translation { type automap } vlans { vlan.br1 } vlans-enabled } ltm policy asm_auto_l7_policy__nginx-vip-tls { controls { asm } last-modified 2024-03-20:13:25:13 requires { http } rules { default { actions { 1 { asm enable policy /Common/testpol } } ordinal 1 } } status legacy strategy first-match } ltm pool nginx-pool { members { 172.16.102.5:http { address 172.16.102.5 session monitor-enabled state up } } monitor http } security bot-defense asm-profile ASM_testpol { app-service none clientside-in-use disabled flags 0 inject-javascript disabled persistent-data-validity-period 0 send-brute-force-challenge disabled send-javascript-challenge disabled send-javascript-efoxy disabled send-javascript-fingerprint disabled } ltm profile client-ssl cssl.TestSuite { app-service none cert-key-chain { default { cert default.crt key default.key } } cipher-group cg_TLSv1.3 ciphers none defaults-from clientssl inherit-ca-certkeychain true inherit-certkeychain true options { dont-insert-empty-fragments } } ltm cipher group cg_TLSv1.3 { allow { cr_TLSv1.3 { } } } ltm cipher rule cr_TLSv1.3 { cipher TLSv1_3 dh-groups DEFAULT signature-algorithms DEFAULT } ltm profile http customHTTP { app-service none defaults-from http enforcement { known-methods { PATCH DELETE GET POST PUT } max-header-count 32 max-header-size 16384 rfc-compliance enabled } hsts { mode enabled } insert-xforwarded-for enabled proxy-type reverse } ltm profile tcp customTCP { app-service none congestion-control bbr defaults-from f5-tcp-progressive idle-timeout 600 ip-tos-to-client pass-through keep-alive-interval 2100 pkt-loss-ignore-burst 3 pkt-loss-ignore-rate 10 proxy-options enabled } ltm profile web-security websecurity { } You can see that I have some non-standard options in some of that configuration, such as specifying the congestion-control algorithm algorithm in the TCP profile, enabling HSTS in the HTTP profile, and setting cipher rules and groups for use in my SSL profile. Now that we have an idea of the workload we're going to migrate, let's create a UCS of the system for use in the migration. If you are already comfortable with this part on classic BIG-IP systems, you can skip down to the next section header. First, login to your classic BIG-IP and navigate to System->Archives and click Create. Give it a name and click Finished. I named mine next-migration. Click OK after the UCS has been generated and saved. In the archive list, click the name of the UCS you created. Click the Download button. Migrating the Workload in Central Manager Upload UCS and Analyze the Workloads Armed with your UCS, login to Central Manager and on the welcome screen, click Go to Application Workspace. If you have not added any applications yet, you'll see a screen like this with a Start Adding Apps button. If you already have something defined, you'll see a list of applications. Click the + Add Application button instead. On this screen, we'll bypass creating a new application service and select New Migration. Name your session as you'll be able to come back to it to migrate other applications later if your intent is to just migrate a single application for now (as is the case with this walkthrough.) I added a description but it is not necessary. Click Next. Here you'll select your UCS archive and group your application services by IP addresses OR by virtual server. I stuck with the recommended default. Click Next. Your UCS will now upload and then Central Manager will analyze and group the package. An enhanced version of the JOURNEYS tool available in the f5devcentral organization on GitHub is used here. Select Add Application. Application 5 is the one we are interested in analyzing and migrating for this walkthrough, so I selected that one. Notice in the status column the applications that have warnings, and that ours is one of them. Hovering over the triangle icon it indicates the app can be migrated, but without some of the functionality from our classic iteration of this workload. Next, click Analyze at the top right so we can see what can't be migrated. In the Configuration Analyzer screen, there are 3 files with areas of concern. First, that the websecurity profile is not supported. This is ok, the mechanisms to support attaching policies in Next are slightly different. Next from what was the bigip_base.conf file, it's not supporting the vlan as defined. This is included in the migration analysis as the vlans are specified in my virtual server, but the mechanisms for doing so are different in Next. (Note: I don't fully grok this change yet. This article will be updated once I have confidence I'm communicating the functionality accurately.) And finally, from the bigip.conf file, there are few areas of concern, shown in the animated gif below. Standalone bot-defense is not a thing in BIG-IP Next, it's part of the overall policy, so that object is not supported. Also not supported yet are local traffic policies and cipher groups. Note that even though these objects aren't supported, I can still migrate the application, and it should "just work." I guess we'll see later in this article, right? :) At this point, select the </> Preview AS3 and copy that to a file. We'll compare that to the classic BIG-IP version of AS3 in a later section. Add an Application Service After closing the AS3 preview, select the application again and click Add. Click Next For this particular application, we need a couple shared objects: the certificate/key pair for the SSL profile and the WAF policy. Click Import. After those are imported, click the numbered icon (2 in my case) under the Shared Objects column, which will open a listing of those objects that you imported. Review the objects (optional) and click Exit. At this step, if your existing application migration is accurate to the object level, you can deploy to an instance directly. But I have some changes to make to the IPs so I'm going to deploy as a draft instead. After seeing that my deployment was successfully deployed as a draft in Central Manager, I click Finish. Update the Draft and Deploy In My Application Services, click the application we just migrated. Here we can tweak the AS3 declaration. I need to update the vlan as my vlan.br1 from my TMOS BIG-IP system is not defined on my Next instance. I also have different client/server address ranges, so I updated the virtual server and pool member addresses as well. You will likely want to change your application name from the generically-migrated "application_5" but I left it as is for this exercise. Once I completed those changes, I clicked Save & Deploy. I was then asked to select an instance to deploy the application server. I only have one currently, so I selected that. This failed due to my vlan configuration. As I mentioned during the migration process, I don't yet fully grok the vlan referencing requirements in Next, so this is a point for me to be educated on and follow up with updates here in this article. Instead, I removed the allowVlans attributed altogether (after another attempt) and then clicked Save & Deploy again and (after re-selecting the deploy location as shown above) found success. Clicking on the application, you get a visual representation of the application objects. Testing and Observing the Migrated Application Now that we have an honest to goodness deployed application on BIG-IP Next (WOO HOO!!) let's test it to make sure things are working as expected. I have a ubuntu test server with connections into my external and internal traffic networks for my Next instance so it can be the client (curl) and the server (NGINX). First, a request that should work: curl -sk https://10.0.2.50/ <!DOCTYPE html> <html> <head> <title>Welcome to nginx!</title> <style> body { width: 35em; margin: 0 auto; font-family: Tahoma, Verdana, Arial, sans-serif; } </style> </head> <body> <h1>Welcome to nginx!</h1> <p>If you see this page, the nginx web server is successfully installed and working. Further configuration is required.</p> <p>For online documentation and support please refer to <a href="http://nginx.org/">nginx.org</a>.<br/> Commercial support is available at <a href="http://nginx.com/">nginx.com</a>.</p> <p><em>Thank you for using nginx.</em></p> Huzzah! That's a successful test. I ran a simple bash script with repetitive wget calls to push just a little load to populate the instance traffic graph: Now let's test the WAF policy by sending some nefarious traffic: curl -sk --config requests.txt https://10.0.2.50/ <html> <head> <title>Request Rejected</title> </head> <body>The requested URL was rejected. Please consult with your administrator.<br><br> Your support ID is: 16177875355615369771<br><br> <a href='javascript:history.back();'>[Go Back]</a> </body> </html> Sweet! Exactly what we wanted to see. Now let's take a look at the WAF Dashboard for blocks. Ok, that's a wrap on migrating the application. Functionally, it is a success! Comparing BIG-IP classic AS3 with BIG-IP Next AS3 If you are moving from classic BIG-IP configuration to BIG-IP Next, you likely will not have any context for comparing AS3 and so you might miss that some of the features you configured in classic are not present in Next. Some of those features aren't there at all yet, and some of them are just not exposed yet. Under the hood, TMM is still TMM with BIG-IP Next, and all of that core functionality is there, it's just a matter of prioritizing what gets exposed and tested and ready to support. Despite a myriad of features in classic BIG-IP, a surprising number of features went either unused or under-used and maintaining support for those will depend on future use requirements. Anyway, one way to build context for AS3 is to useVisual Studio Code and the F5 Extension to take your classic configuration and convert that to AS3 declarations with the AS3 configuration converter. In this section, I'm going to look at a few snippets to compare between classic and Next. Declaration Header The header for classic is a essentially a wrapper (lines 2-4) that isn't necessary in Next at all. That's because in classic, AS3 is not the only declaration class, you also have declarative onboarding and telemetry streaming. Classic: { "$schema": "https://raw.githubusercontent.com/F5Networks/f5-appsvcs-extension/master/schema/latest/as3-schema.json", "class": "AS3", "declaration": { "class": "ADC", "schemaVersion": "3.37.0", "id": "urn:uuid:4339ea7d-094b-4950-b029-ac6344b03a2b", "label": "Converted Declaration", } } Next: { "class": "ADC", "schemaVersion": "3.0.0", "id": "urn:uuid:715aa8d8-c2b0-4890-9e77-5f6131ee9efd", "label": "Converted Declaration", } Profiles One thing to keep in mind with migration is that the migration assistant currently provides detailed analysis to the class level, not the class attribute level. This means that some of the attributes that are supported in classic that are not supported in Next will fly under the radar and be removed with no notification. There is work underway in this regard, but you'll need to evaluate each of your applications as you migrate and plan accordingly. For the app I migrated here, this was evident in the following profiles. ClientSSL Here, the cipher groups and rules from classic are not yet available, and the ability to establish only TLSv1.3 seems to not be configurable at this time. Classic: "cssl.TestSuite": { "certificates": [ { "certificate": "foo.acmelabs.com" } ], "cipherGroup": { "use": "cg_TLSv1.3" }, "class": "TLS_Server", "tls1_0Enabled": true, "tls1_1Enabled": true, "tls1_2Enabled": true, "tls1_3Enabled": true, "singleUseDhEnabled": false, "insertEmptyFragmentsEnabled": false }, Next: "cssl.TestSuite": { "authenticationFrequency": "one-time", "certificates": [ { "certificate": "/tenant87f7bd9913a51/application_5/foo.acmelabs.com" } ], "class": "TLS_Server" }, TCP In the TCP profile, the most notable changes are the loss of QoS settings and the ability to select the congestion control algorithm. Classic: "customTCP": { "congestionControl": "bbr", "idleTimeout": 600, "ipTosToClient": "pass-through", "keepAliveInterval": 2100, "pktLossIgnoreBurst": 3, "pktLossIgnoreRate": 10, "proxyOptions": true, "class": "TCP_Profile" } Next: "customTCP": { "idleTimeout": 600, "pktLossIgnoreBurst": 3, "pktLossIgnoreRate": 10, "proxyBufferHigh": 262144, "proxyBufferLow": 196608, "proxyOptions": true, "sendBufferSize": 262144, "class": "TCP_Profile" }, HTTP In my HTTP profile, it seems I lost all my personally-selected options, such that I'd likely be fine with the default profile. Also, since I'm using the WAF, I can manage the allowed request methods there, and whereas I can't auto-insert strict transport security in the profile directly yet, I can manage that in an iRule as well, so I do have a path to workarounds for both cases. Classic: "customHTTP": { "knownMethods": [ "PATCH", "DELETE", "GET", "POST", "PUT" ], "maxHeaderCount": 32, "maxHeaderSize": 16384, "hstsInsert": true, "xForwardedFor": true, "proxyType": "reverse", "class": "HTTP_Profile" }, Next: "customHTTP": { "requestChunking": "sustain", "responseChunking": "sustain", "class": "HTTP_Profile" } Final Thoughts I point out the differences in my before and after to show a complete picture of the migration process. Some things changed, some went away, but the bottom line is I have a working application service. Before working on this article, I've done a migration in a couple step-by-step controlled labs and have played with but not finished deploying a working, tested, functional application in my own lab. Don't make that same mistake. Get your classic configurations migrated ASAP even if only as a draft in Central Manager, so you can start to evaluate and analyze What work you have on your end to tweak and tune where features have changed Where you need to start engaging your account team to inquire about your MUST HAVE features that may or may not be scoped currently. Next time out, we'll take a look at creating a net-new application service. Until then, stay active out there community and start digging into BIG-IP Next!BIG-IP Next Access presentation/demo
Hi everyone! Luke Lehman, BIG-IP Next Access product manager, will be joining us for a zoom presentation/demo on December 12th at 9am pacific standard time. Come see what's brewing for APM! If you have any questions before the session, drop them below. Zoom Session Link Oh...and we just might have an ugly sweater or two to give away to attendees!Getting Started with BIG-IP Next: Upgrading Central Manager
Upgrades are one of the major improvements in moving from BIG-IP classic to Next. Whereas there is no direct analog for Central Manager in BIG-IP classic, the improvements from the BIG-IP/BIG-IQ upgrade experience will be noticeable. Simplification is the goal, and in my first Central Manager upgrade experience, I'd say that bar has been reached. In this article, I'll walk you through performing an upgrade to a standalone Central Manager. When HA for Central Manager is released, I'll update this article with those details. The installation steps on Clouddocs (links in the resources at the end of this article) make note that you should upgrade your instances before Central Manager, so keep that in mind as you build out your procedure sets for BIG-IP Next operations. For production I'd also recommend taking a backup of Central Manager as well (I'll do a walkthrough of that process in the coming weeks) but for discovery on my BIG-IP Next journey, I'll skip that step and nuke/pave if I have an issue. The first step in the upgrade process is to download the BIG-IP Next Central Manager upgrade package. After you have the upgraded package, login to your Central Manager. Click in the upper left on the tic-tac-toe board. Then in the dropdown menu that appears, select the System option. There's only one option here currently, and that's the upgrade button. Go ahead and click it. There will be a couple notes on the new window about resources and information on the unavailability to perform tasks during the upgrade. Go ahead and click next. If you didn't grab the package yet, the link to do so is included on this menu page. I selected the upload file option, selected the package from my downloads, and uploaded the file. You'll get the "green means go" checkbox when it's ready, at which point you can click the upgrade button. On the "Are you sure?" alert dialog, go ahead and click yes, upgrade. At this point, the upgrade will begin. On my upgrade, session was grayed out and I could not interact with the Central Manager interface, so my session timed out. I had trouble getting back in for several minutes, but when I got back in, I was presented with this alert dialog. You can click close here. And with that, you can see the new version of code. Congratulations on your first upgrade of Central Manager. Resources Upgrade BIG-IP Next Central Manager
