As far as I know heroku gives you one dyno for free for your app. I uploaded an app but I have no dynos to assign to it.
What should I do?
You need to provide a Procfile so Heroku will know what kind of Dynos you need and how to start your app. Then you'll be able to scale your Dynos.
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I'm using Heroku's Pipeline feature to manage the stages of my application. I received an email about Heroku getting rid of their free plans, so I went ahead and upgraded my plan just now. Currently, I have one app with two database add-ons in Heroku. This is the first time that I've used their Pipeline feature—and I'm by no means a Heroku expert. I have two questions:
Do I need to purchase dynos for every new app that I use Heroku for? The plan that I ended up purchasing was the Production plan (since the app is for a client), and I also purchased two psql database add-ons which are attached to the app.
Since I'm using their pipeline for my one app, I have staging and prod versions of the app assigned to their appropriate branches in the repo. The prod app is where I upgraded to the paid plan. Do I need to purchase any dynos or add-ons for the staging app within the Pipeline? I was able to attach the databases with no issue, but I purchased a dyno for the staging app just to be safe.
Feel free to share any of your favorite Heroku alternatives as well—I'm only using Heroku because that's what I learned how to use in school.
Fellow Heroku user here!
Do I need to purchase dynos for every new app that I use Heroku for?
Yes. Heroku have basically said they’re getting rid of free plans for all applications due to wanting to make more money security reasons. So staging apps will also fall under this.
Basically, it sounds like there’s going to be no free tier dynos or first party add-ons from Heroku going forward. They do suggest for non-production apps (like testing and staging apps) to turn your dynos on when in use, and off when not in use, and you’ll only be billed for the time the dyno is on.
I‘m not sure which plan is the Production plan (I couldn’t see it on the pricing page) but maybe try out Hobby first. I have multiple apps running with paid Hobby-tier dynos and they have ran just fine without really spiking the CPU or memory available in those dynos. But I’m running PHP apps, so your milage may vary if you’re using another tech stack, or do get more load than my apps.
I use heroku worker for free plan to deploy my twitter bot and I make it work all day, but my dyno doesn't be consumed(I checked Account settings/Billing/Free Dyno Usage).
Please teach me why it is?
I have an account in heroku. In that account, there are lots of Apps, each app had different kinds of dyno's.
I got a mail saying my free dyno is getting used up and I have to upgrade.
To find out which app has the free dyno is so tedious.
Since I have to fetch the list of dynos for every app using the command heroku ps -a appName.
Is there any command to list all free dynos in my Heroku account?
While logged in visit this link: https://dashboard.heroku.com/account/billing
I have $161 platform credits on heroku from GitHub student pack to spend for one hobby dyno:
The Heroku offer is for one (1) free Hobby Dyno for two years, which will be applied on your invoice as a discount of $7 for a Hobby Dyno.
I already deployed one spring app and changed its dyno to hobby. My question is if there is a way I could deploy second Java app and set it to use the same dyno which is assigned for the first app?
Right now I have one app which has hobby dyno and one app which uses free dyno. I read on the internet and people say that there is only one app allowed for one dyno and Heroku will charge me for the second one but there is also this thread How many apps are allowed on a 'Hobby' Heroku plan? which says that I can have more than one app per hobby dyno.
So what's the truth?
No, you can't run multiple apps on a single dyno.
Heroku's model is to run one app per dyno (and often many dynos for a single app). The question you reference discussed the Hobby plan¹, asking how many dynos can be run per account. Keep in mind that Heroku's model is different from the shared or VPS hosting you might be used to. Dynos don't provide an OS that you can put apps onto; they run apps directly.
¹Technically I don't think this makes a ton of sense since accounts don't have these kinds of tiers. One account can run free dynos, hobby dynos, and professional dynos. But there is a difference between unverified accounts, which can run up to five free dynos, and verified accounts which can run many more.
According to this article on the heroku page it is possible but not recommended.
Heroku post
we want to migrate my application to Heroku acctually we have 3 applications related and we want to move to Heroku. But we don't know how many dynos we need for deploy those applications. wether 3 applications in the same dynos and make a copy in other dynos or for each application one dynos? thanks for your help.
If they are 3 separate applications you will need a minimum of 3 dynos since each Heroku application will need to run a dyno.
As to how many dynos each of your application needs to run that all depends on how busy each site is and how long requests take to process.
I can only speak for Java and an embedded server/container. In this case you actually could deploy more than one app into your container (which will be startet from your dyno), only using one dyno.