I will use an opportunity to confirm that cloud is ill-suited for almost all but niche business cases and majority of users were dragged into cloud platforms either by free credits or (my suspicion) some grey kick-back schemes with C-level guys.
At my current project (Fortune 500 saas company, was there for both on-prem to cloud and then cloud-to-cloud migration):
a) Resources are terribly expensive. Usual tricks you find online (spot instances) usually cannot be applied for some specific work related reason. In our estimates, in contrast to even the hw/sw list-prices, cloud is 5x-10x more expensive, of course depending on the features you are planning to use.
b) There is always a sort of "direction" cloud provider pushes you into: in my case, costs between VMs and Kubernetes are so high, we
get almost weekly demands to make the conversion, even though Kubernetes for some of the scenarios we have don't make any sense.
c) Even though we are spending 6 figures, now maybe even 7 figures on the infrastructure monthly, priority support answer that we receive are borderline comical and in-line with one response we received when we asked why our DB service was down, quote: "DB has experienced some issues so it was restarted."
d) When we were having on-prem, some new features asked from ops side, were usually implemented / investigated in a day or so. Nowadays, in most cases, answers are available after week or so of investigation, because each thing has its own name and lingo with different cloud providers. This can be solved with specific cloud certifications, but in real-world, we cannot pause the business for 6 months until all ops are completely knowledgeable about all inner workings of the currently popular cloud provider.
e) Performance is atrocious at times. That multi-tenancy some guys are mentioning here is for provider's benefit not for the customer. They cram ungodly amount of workload on machines, that mostly works, until it doesn't and when it does not, effects are catastrophic. Yes, you can have isolation and dedicated resources, but a)
f) Security and reliability features are overly exaggerated. From the observable facts, in the last year, we had 4 major incidents lasting several hours strictly related to the platform (total connectivity failure, total service failure, complete loss of one of the sites, etc).
In the end, for anyone who wants to get deeper into this, check what Ahrefs wrote about cloud.
At my current project (Fortune 500 saas company, was there for both on-prem to cloud and then cloud-to-cloud migration):
a) Resources are terribly expensive. Usual tricks you find online (spot instances) usually cannot be applied for some specific work related reason. In our estimates, in contrast to even the hw/sw list-prices, cloud is 5x-10x more expensive, of course depending on the features you are planning to use.
b) There is always a sort of "direction" cloud provider pushes you into: in my case, costs between VMs and Kubernetes are so high, we get almost weekly demands to make the conversion, even though Kubernetes for some of the scenarios we have don't make any sense.
c) Even though we are spending 6 figures, now maybe even 7 figures on the infrastructure monthly, priority support answer that we receive are borderline comical and in-line with one response we received when we asked why our DB service was down, quote: "DB has experienced some issues so it was restarted."
d) When we were having on-prem, some new features asked from ops side, were usually implemented / investigated in a day or so. Nowadays, in most cases, answers are available after week or so of investigation, because each thing has its own name and lingo with different cloud providers. This can be solved with specific cloud certifications, but in real-world, we cannot pause the business for 6 months until all ops are completely knowledgeable about all inner workings of the currently popular cloud provider.
e) Performance is atrocious at times. That multi-tenancy some guys are mentioning here is for provider's benefit not for the customer. They cram ungodly amount of workload on machines, that mostly works, until it doesn't and when it does not, effects are catastrophic. Yes, you can have isolation and dedicated resources, but a)
f) Security and reliability features are overly exaggerated. From the observable facts, in the last year, we had 4 major incidents lasting several hours strictly related to the platform (total connectivity failure, total service failure, complete loss of one of the sites, etc).
In the end, for anyone who wants to get deeper into this, check what Ahrefs wrote about cloud.