Tag Archives: App Development

#WeArePlay | Discover the people building apps & games businesses

Posted by Patricia Correa, Director, Global Developer Marketing

Over 2.5 billion people come to Google Play every month to find apps and games created by millions of businesses from all over the world.

#WeArePlay celebrates you: the global community of people behind these businesses.

Each one of you creating an app or game has a different story to tell. Some of you have been coders since childhood, others are newbies who got into tech later in life. Some of you are based in busy cities, others in smaller towns. No matter who you are or how different your story is, you all have one thing in common - you have the passion to turn an idea into a business impacting people all over the world.

Now, and over the coming months, #WeArePlay celebrates you by sharing your stories.



We are kicking off the series with the story of Yvonne and Alyssa, the London-based mother and daughter duo who created Frobelles - a dress up game increasing representation of African and Caribbean hair styles.



You can now also discover the stories of friends Ronaldo, Carlos and Thadeu from Hand Talk Translator (Brazil - my home country!), art lover Zuzanna from DailyArt (Poland) and travel-loving couple Ina & Jonas from TravelSpend (Germany).





To all apps and games businesses - thank you for being a part of the Google Play community. Your dedication and ambition is helping millions of people learn, connect, relax, exercise, find jobs, give back, laugh, have fun, escape to fantasy lands, and so much more.

Read more and stay tuned for many more stories at g.co/play/weareplay


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#WeArePlay | Discover the people building apps & games businesses

Posted by Patricia Correa, Director, Global Developer Marketing

Over 2.5 billion people come to Google Play every month to find apps and games created by millions of businesses from all over the world.

#WeArePlay celebrates you: the global community of people behind these businesses.

Each one of you creating an app or game has a different story to tell. Some of you have been coders since childhood, others are newbies who got into tech later in life. Some of you are based in busy cities, others in smaller towns. No matter who you are or how different your story is, you all have one thing in common - you have the passion to turn an idea into a business impacting people all over the world.

Now, and over the coming months, #WeArePlay celebrates you by sharing your stories.




We are kicking off the series with the story of Yvonne and Alyssa, the London-based mother and daughter duo who created Frobelles - a dress up game increasing representation of African and Caribbean hair styles.



You can now also discover the stories of friends Ronaldo, Carlos and Thadeu from Hand Talk Translator (Brazil - my home country!), art lover Zuzanna from DailyArt (Poland) and travel-loving couple Ina & Jonas from TravelSpend (Germany).

To all apps and games businesses - thank you for being a part of the Google Play community. Your dedication and ambition is helping millions of people learn, connect, relax, exercise, find jobs, give back, laugh, have fun, escape to fantasy lands, and so much more.

Read more and stay tuned for many more stories at g.co/play/weareplay


How useful did you find this blog post?

Migrating App Engine push queues to Cloud Tasks

Posted by Wesley Chun (@wescpy), Developer Advocate, Google Cloud

Banner image that shows the Cloud Task logo

Introduction

The previous Module 7 episode of Serverless Migration Station gave developers an idea of how App Engine push tasks work and how to implement their use in an existing App Engine ndb Flask app. In this Module 8 episode, we migrate this app from the App Engine Datastore (ndb) and Task Queue (taskqueue) APIs to Cloud NDB and Cloud Tasks. This makes your app more portable and provides a smoother transition from Python 2 to 3. The same principle applies to upgrading other legacy App Engine apps from Java 8 to 11, PHP 5 to 7, and up to Go 1.12 or newer.

Over the years, many of the original App Engine services such as Datastore, Memcache, and Blobstore, have matured to become their own standalone products, for example, Cloud Datastore, Cloud Memorystore, and Cloud Storage, respectively. The same is true for App Engine Task Queues, whose functionality has been split out to Cloud Tasks (push queues) and Cloud Pub/Sub (pull queues), now accessible to developers and applications outside of App Engine.

Migrating App Engine push queues to Cloud Tasks video

Migrating to Cloud NDB and Cloud Tasks

The key updates being made to the application:

  1. Add support for Google Cloud client libraries in the app's configuration
  2. Switch from App Engine APIs to their standalone Cloud equivalents
  3. Make required library adjustments, e.g., add use of Cloud NDB context manager
  4. Complete additional setup for Cloud Tasks
  5. Make minor updates to the task handler itself

The bulk of the updates are in #3 and #4 above, and those are reflected in the following "diff"s for the main application file:

Screenshot shows primary differences in code when switching to Cloud NDB & Cloud Tasks

Primary differences switching to Cloud NDB & Cloud Tasks

With these changes implemented, the web app works identically to that of the Module 7 sample, but both the database and task queue functionality have been completely swapped to using the standalone/unbundled Cloud NDB and Cloud Tasks libraries… congratulations!

Next steps

To do this exercise yourself, check out our corresponding codelab which leads you step-by-step through the process. You can use this in addition to the video, which can provide guidance. You can also review the push tasks migration guide for more information. Arriving at a fully-functioning Module 8 app featuring Cloud Tasks sets the stage for a larger migration ahead in Module 9. We've accomplished the most important step here, that is, getting off of the original App Engine legacy bundled services/APIs. The Module 9 migration from Python 2 to 3 and Cloud NDB to Cloud Firestore, plus the upgrade to the latest version of the Cloud Tasks client library are all fairly optional, but they represent a good opportunity to perform a medium-sized migration.

All migration modules, their videos (when available), codelab tutorials, and source code, can be found in the migration repo. While the content focuses initially on Python users, we will cover other legacy runtimes soon so stay tuned.

How to use App Engine push queues in Flask apps

Posted by Wesley Chun (@wescpy), Developer Advocate, Google Cloud

Banner image that shows the Cloud Task logo

Introduction

Since its original launch in 2008, many of the core Google App Engine services such as Datastore, Memcache, and Blobstore, have matured to become their own standalone products: for example, Cloud Datastore, Cloud Memorystore, and Cloud Storage, respectively. The same is true for App Engine Task Queues with Cloud Tasks. Today's Module 7 episode of Serverless Migration Station reviews how App Engine push tasks work, by adding this feature to an existing App Engine ndb Flask app.

App Engine push queues in Flask apps video

That app is where we left off at the end of Module 1, migrating its web framework from App Engine webapp2 to Flask. The app registers web page visits, creating a Datastore Entity for each. After a new record is created, the ten most recent visits are displayed to the end-user. If the app only shows the latest visits, there is no reason to keep older visits, so the Module 7 exercise adds a push task that deletes all visits older than the oldest one shown. Tasks execute asynchronously outside the normal application flow.

Key updates

The following are the changes being made to the application:

  1. Add use of App Engine Task Queues (taskqueue) API
  2. Determine oldest visit displayed, logging and saving that timestamp
  3. Create task to delete old visits
  4. Update web page template to display timestamp threshold
  5. Log how many and which visits (by Entity ID) are deleted

Except for #4 which occurs in the HTML template file, these updates are reflected in the "diff"s for the main application file:

Screenshot of App Engine push tasks application source code differences

Adding App Engine push tasks application source code differences

With these changes implemented, the web app now shows the end-user which visits will be deleted by the new push task:

Screenshot of VisitMe example showing last ten site visits. A red circle around older visits being deleted

Sample application output

Next steps

To do this exercise yourself, check out our corresponding codelab which leads you step-by-step through the process. You can use this in addition to the video, which can provide guidance. You can also review the push queue documentation for more information. Arriving at a fully-functioning Module 7 app featuring App Engine push tasks sets the stage for migrating it to Cloud Tasks (and Cloud NDB) ahead in Module 8.

All migration modules, their videos (when available), codelab tutorials, and source code, can be found in the migration repo. While the content focuses initially on Python users, we will cover other legacy runtimes soon so stay tuned.

App performance to drive app excellence

Posted by Maru Ahues Bouza, Director Android Developer Relations

hand drawing shapes on a tablet

In our previous blog post in this series, we defined app excellence as “creating an app that provides consistent, effortless, and seamless app user experiences. It is high performing and provides a great experience, no matter the device being used.” Let’s focus on the concept of app performance — what are the features of high performing apps, and how do you achieve app excellence through strong performance?

From a user’s perspective, high-performing apps “just work.” However, the process of creating a high performing app is not always straightforward. To break things down, here are the main dimensions of high performance:

Stability

An app should be robust and reliable. It should not freeze (application not responding, or “ANR”) or crash. Before you launch your app, check out Google Play’s pre-launch report to identify potential stability issues. After deployment, pay attention to the Android Vitals page in the Google Play developer console. Specifically, ANRs are caused by threading issues. The ANR troubleshooting guide can help you diagnose and resolve any ANRs that exist in your app.

Quick loading

Imagine the first experience a user has of your app is…..waiting. At some point, they are going to get distracted or bored, and you have lost a new user. Your app should either load quickly or provide some sort of feedback onscreen such as a progress indicator. You can use data from Android vitals to quantify any issues you may have with start up times. Android vitals considers excessive start up times as:

  • Cold startup takes 5 seconds or longer.
  • Warm startup takes 2 seconds or longer.
  • Hot startup takes 1.5 seconds or longer.

However, these are relatively conservative numbers. We recommend you aim for lower. Here are some great tips on how to test start up performance.

Fast rendering

High quality frame rendering is not just for games. Smooth visual experiences that don’t stall or act sluggish are also important for apps. At a minimum aim to render frames every 16ms to achieve 60 frames per second, but bear in mind there are devices in the market with faster refresh rates. To monitor performance as you test, use the Profile HWUI rendering option. Here are tools to help diagnose rendering issues.

Economical with battery usage

As soon as a user realizes your app is draining their battery, they are going to consider uninstalling. Your app can drain battery through stuck partial wake locks, excessive wakeups, background Wifi scans, or background network usage. Use the Android Studio energy profiler combined with planned background work, to diagnose unexpected battery use. For apps that need to execute background tasks that require a guarantee that the system will run them even if the app exits, WorkManager is a battery friendly Android Jetpack library that runs deferrable, guaranteed background work when the work’s constraints are satisfied.

Using up-to-date SDKs

For both security and performance, it’s important that any Google or third-party SDKs used are up-to-date. Improvements to these SDKs, such as stability, compatibility, or security, should be available to users in a timely manner. You are responsible for the entire code base, including any third party SDKs you may utilize. For Google SDKs, consider using SDKs powered by Google Play services, when available. These SDKs are backward compatible, receive automatic updates, reduce your app package size, and make efficient use of on-device resources.

To learn more, please visit the Android app excellence webpage, where you will find case studies, practical tips, and the opportunity to sign up for our App Excellence summit..

In our next blog posts, we will talk about seamless user experiences across devices. Sign up to the Android developer newsletter here to be notified of the next installment and get news and insights from the Android team.

An easier way to move your App Engine apps to Cloud Run

Posted by Wesley Chun (@wescpy), Developer Advocate, Google Cloud

Blue header

An easier yet still optional migration

In the previous episode of the Serverless Migration Station video series, developers learned how to containerize their App Engine code for Cloud Run using Docker. While Docker has gained popularity over the past decade, not everyone has containers integrated into their daily development workflow, and some prefer "containerless" solutions but know that containers can be beneficial. Well today's video is just for you, showing how you can still get your apps onto Cloud Run, even If you don't have much experience with Docker, containers, nor Dockerfiles.

App Engine isn't going away as Google has expressed long-term support for legacy runtimes on the platform, so those who prefer source-based deployments can stay where they are so this is an optional migration. Moving to Cloud Run is for those who want to explicitly move to containerization.

Migrating to Cloud Run with Cloud Buildpacks video

So how can apps be containerized without Docker? The answer is buildpacks, an open-source technology that makes it fast and easy for you to create secure, production-ready container images from source code, without a Dockerfile. Google Cloud Buildpacks adheres to the buildpacks open specification and allows users to create images that run on all GCP container platforms: Cloud Run (fully-managed), Anthos, and Google Kubernetes Engine (GKE). If you want to containerize your apps while staying focused on building your solutions and not how to create or maintain Dockerfiles, Cloud Buildpacks is for you.

In the last video, we showed developers how to containerize a Python 2 Cloud NDB app as well as a Python 3 Cloud Datastore app. We targeted those specific implementations because Python 2 users are more likely to be using App Engine's ndb or Cloud NDB to connect with their app's Datastore while Python 3 developers are most likely using Cloud Datastore. Cloud Buildpacks do not support Python 2, so today we're targeting a slightly different audience: Python 2 developers who have migrated from App Engine ndb to Cloud NDB and who have ported their apps to modern Python 3 but now want to containerize them for Cloud Run.

Developers familiar with App Engine know that a default HTTP server is provided by default and started automatically, however if special launch instructions are needed, users can add an entrypoint directive in their app.yaml files, as illustrated below. When those App Engine apps are containerized for Cloud Run, developers must bundle their own server and provide startup instructions, the purpose of the ENTRYPOINT directive in the Dockerfile, also shown below.

Starting your web server with App Engine (app.yaml) and Cloud Run with Docker (Dockerfile) or Buildpacks (Procfile)

Starting your web server with App Engine (app.yaml) and Cloud Run with Docker (Dockerfile) or Buildpacks (Procfile)

In this migration, there is no Dockerfile. While Cloud Buildpacks does the heavy-lifting, determining how to package your app into a container, it still needs to be told how to start your service. This is exactly what a Procfile is for, represented by the last file in the image above. As specified, your web server will be launched in the same way as in app.yaml and the Dockerfile above; these config files are deliberately juxtaposed to expose their similarities.

Other than this swapping of configuration files and the expected lack of a .dockerignore file, the Python 3 Cloud NDB app containerized for Cloud Run is nearly identical to the Python 3 Cloud NDB App Engine app we started with. Cloud Run's build-and-deploy command (gcloud run deploy) will use a Dockerfile if present but otherwise selects Cloud Buildpacks to build and deploy the container image. The user experience is the same, only without the time and challenges required to maintain and debug a Dockerfile.

Get started now

If you're considering containerizing your App Engine apps without having to know much about containers or Docker, we recommend you try this migration on a sample app like ours before considering it for yours. A corresponding codelab leading you step-by-step through this exercise is provided in addition to the video which you can use for guidance.

All migration modules, their videos (when available), codelab tutorials, and source code, can be found in the migration repo. While our content initially focuses on Python users, we hope to one day also cover other legacy runtimes so stay tuned. Containerization may seem foreboding, but the goal is for Cloud Buildpacks and migration resources like this to aid you in your quest to modernize your serverless apps!

Containerizing Google App Engine apps for Cloud Run

Posted by Wesley Chun (@wescpy), Developer Advocate, Google Cloud

Google App Engine header

An optional migration

Serverless Migration Station is a video mini-series from Serverless Expeditions focused on helping developers modernize their applications running on a serverless compute platform from Google Cloud. Previous episodes demonstrated how to migrate away from the older, legacy App Engine (standard environment) services to newer Google Cloud standalone equivalents like Cloud Datastore. Today's product crossover episode differs slightly from that by migrating away from App Engine altogether, containerizing those apps for Cloud Run.

There's little question the industry has been moving towards containerization as an application deployment mechanism over the past decade. However, Docker and use of containers weren't available to early App Engine developers until its flexible environment became available years later. Fast forward to today where developers have many more options to choose from, from an increasingly open Google Cloud. Google has expressed long-term support for App Engine, and users do not need to containerize their apps, so this is an optional migration. It is primarily for those who have decided to add containerization to their application deployment strategy and want to explicitly migrate to Cloud Run.

If you're thinking about app containerization, the video covers some of the key reasons why you would consider it: you're not subject to traditional serverless restrictions like development language or use of binaries (flexibility); if your code, dependencies, and container build & deploy steps haven't changed, you can recreate the same image with confidence (reproducibility); your application can be deployed elsewhere or be rolled back to a previous working image if necessary (reusable); and you have plenty more options on where to host your app (portability).

Migration and containerization

Legacy App Engine services are available through a set of proprietary, bundled APIs. As you can surmise, those services are not available on Cloud Run. So if you want to containerize your app for Cloud Run, it must be "ready to go," meaning it has migrated to either Google Cloud standalone equivalents or other third-party alternatives. For example, in a recent episode, we demonstrated how to migrate from App Engine ndb to Cloud NDB for Datastore access.

While we've recently begun to produce videos for such migrations, developers can already access code samples and codelab tutorials leading them through a variety of migrations. In today's video, we have both Python 2 and 3 sample apps that have divested from legacy services, thus ready to containerize for Cloud Run. Python 2 App Engine apps accessing Datastore are most likely to be using Cloud NDB whereas it would be Cloud Datastore for Python 3 users, so this is the starting point for this migration.

Because we're "only" switching execution platforms, there are no changes at all to the application code itself. This entire migration is completely based on changing the apps' configurations from App Engine to Cloud Run. In particular, App Engine artifacts such as app.yaml, appengine_config.py, and the lib folder are not used in Cloud Run and will be removed. A Dockerfile will be implemented to build your container. Apps with more complex configurations in their app.yaml files will likely need an equivalent service.yaml file for Cloud Run — if so, you'll find this app.yaml to service.yaml conversion tool handy. Following best practices means there'll also be a .dockerignore file.

App Engine and Cloud Functions are sourced-based where Google Cloud automatically provides a default HTTP server like gunicorn. Cloud Run is a bit more "DIY" because users have to provide a container image, meaning bundling our own server. In this case, we'll pick gunicorn explicitly, adding it to the top of the existing requirements.txt required packages file(s), as you can see in the screenshot below. Also illustrated is the Dockerfile where gunicorn is started to serve your app as the final step. The only differences for the Python 2 equivalent Dockerfile are: a) require the Cloud NDB package (google-cloud-ndb) instead of Cloud Datastore, and b) start with a Python 2 base image.

Image of The Python 3 requirements.txt and Dockerfile

The Python 3 requirements.txt and Dockerfile

Next steps

To walk developers through migrations, we always "START" with a working app then make the necessary updates that culminate in a working "FINISH" app. For this migration, the Python 2 sample app STARTs with the Module 2a code and FINISHes with the Module 4a code. Similarly, the Python 3 app STARTs with the Module 3b code and FINISHes with the Module 4b code. This way, if something goes wrong during your migration, you can always rollback to START, or compare your solution with our FINISH. If you are considering this migration for your own applications, we recommend you try it on a sample app like ours before considering it for yours. A corresponding codelab leading you step-by-step through this exercise is provided in addition to the video which you can use for guidance.

All migration modules, their videos (when published), codelab tutorials, START and FINISH code, etc., can be found in the migration repo. We hope to also one day cover other legacy runtimes like Java 8 so stay tuned. We'll continue with our journey from App Engine to Cloud Run ahead in Module 5 but will do so without explicit knowledge of containers, Docker, or Dockerfiles. Modernizing your development workflow to using containers and best practices like crafting a CI/CD pipeline isn't always straightforward; we hope content like this helps you progress in that direction!

Migrating from App Engine webapp2 to Flask

Posted by Wesley Chun (@wescpy), Developer Advocate, Google Cloud
graphic showing movement with arrows,. settings, lines, and more

Migrating web framework

The Google Cloud team recently introduced a series of codelabs (free, self-paced, hands-on tutorials) and corresponding videos designed to help users on one of our serverless compute platforms modernize their apps, with an initial focus on our earliest users running their apps on Google App Engine. We kick off this content by showing users how to migrate from App Engine's webapp2 web framework to Flask, a popular framework in the Python community.

While users have always been able to use other frameworks with App Engine, webapp2 comes bundled with App Engine, making it the default choice for many developers. One new requirement in App Engine's next generation platform (which launched in 2018) is that web frameworks must do their own routing, which unfortunately, means that webapp2 is no longer supported, so here we are. The good news is that as a result, modern App Engine is more flexible, lets users to develop in a more idiomatic fashion, and makes their apps more portable.

For example, while webapp2 apps can run on App Engine, Flask apps can run on App Engine, your servers, your data centers, or even on other clouds! Furthermore, Flask has more users, more published resources, and is better supported. If Flask isn't right for you, you can select from other WSGI-compliant frameworks such as Django, Pyramid, and others.

Video and codelab content

In this "Module 1" episode of Serverless Migration Station (part of the Serverless Expeditions series) Google engineer Martin Omander and I explore this migration and walk developers through it step-by-step.

In the previous video, we introduced developers to the baseline Python 2 App Engine NDB webapp2 sample app that we're taking through each of the migrations. In the video above, users see that the majority of the changes are in the main application handler, MainHandler:

The diffs between the webapp2 and Flask versions of the sample app

The "diffs" between the webapp2 and Flask versions of the sample app

Upon (re)deploying the app, users should see no visible changes to the output from the original version:

VisitMe application sample output

VisitMe application sample output

Next steps

Today's video picks up from where we left off: the Python 2 baseline app in its Module 0 repo folder. We call this the "START". By the time the migration has completed, the resulting source code, called "FINISH", can be found in the Module 1 repo folder. If you mess up partway through, you can rewind back to the START, or compare your solution with ours, FINISH. We also hope to one day provide a Python 3 version as well as cover other legacy runtimes like Java 8, PHP 5, and Go 1.11 and earlier, so stay tuned!

All of the migration learning modules, corresponding videos (when published), codelab tutorials, START and FINISH code, etc., can all be found in the migration repo. The next video (Module 2) will cover migrating from App Engine's ndb library for Datastore to Cloud NDB. We hope you find all these resources helpful in your quest to modernize your serverless apps!

Introducing "Serverless Migration Station" Learning Modules

Posted by Wesley Chun (@wescpy), Developer Advocate, Google Cloud
graphic showing movement with arrows,. settings, lines, and more

Helping users modernize their serverless apps

Earlier this year, the Google Cloud team introduced a series of codelabs (free, online, self-paced, hands-on tutorials) designed for technical practitioners modernizing their serverless applications. Today, we're excited to announce companion videos, forming a set of "learning modules" made up of these videos and their corresponding codelab tutorials. Modernizing your applications allows you to access continuing product innovation and experience a more open Google Cloud. The initial content is designed with App Engine developers in mind, our earliest users, to help you take advantage of the latest features in Google Cloud. Here are some of the key migrations and why they benefit you:

  • Migrate to Cloud NDB: App Engine's legacy ndb library used to access Datastore is tied to Python 2 (which has been sunset by its community). Cloud NDB gives developers the same NDB-style Datastore access but is Python 2-3 compatible and allows Datastore to be used outside of App Engine.
  • Migrate to Cloud Run: There has been a continuing shift towards containerization, an app modernization process making apps more portable and deployments more easily reproducible. If you appreciate App Engine's easy deployment and autoscaling capabilities, you can get the same by containerizing your App Engine apps for Cloud Run.
  • Migrate to Cloud Tasks: while the legacy App Engine taskqueue service is still available, new features and continuing innovation are going into Cloud Tasks, its standalone equivalent letting users create and execute App Engine and non-App Engine tasks.


The "Serverless Migration Station" videos are part of the long-running Serverless Expeditions series you may already be familiar with. In each video, Google engineer Martin Omander and I explore a variety of different modernization techniques. Viewers will be given an overview of the task at hand, a deeper-dive screencast takes a closer look at the code or configuration files, and most importantly, illustrates to developers the migration steps necessary to transform the same sample app across each migration.

Sample app

The baseline sample app is a simple Python 2 App Engine NDB and webapp2 application. It registers every web page visit (saving visiting IP address and browser/client type) and displays the most recent queries. The entire application is shown below, featuring Visit as the data Kind, the store_visit() and fetch_visits() functions, and the main application handler, MainHandler.


import os
import webapp2
from google.appengine.ext import ndb
from google.appengine.ext.webapp import template

class Visit(ndb.Model):
'Visit entity registers visitor IP address & timestamp'
visitor = ndb.StringProperty()
timestamp = ndb.DateTimeProperty(auto_now_add=True)

def store_visit(remote_addr, user_agent):
'create new Visit entity in Datastore'
Visit(visitor='{}: {}'.format(remote_addr, user_agent)).put()

def fetch_visits(limit):
'get most recent visits'
return (v.to_dict() for v in Visit.query().order(
-Visit.timestamp).fetch(limit))

class MainHandler(webapp2.RequestHandler):
'main application (GET) handler'
def get(self):
store_visit(self.request.remote_addr, self.request.user_agent)
visits = fetch_visits(10)
tmpl = os.path.join(os.path.dirname(__file__), 'index.html')
self.response.out.write(template.render(tmpl, {'visits': visits}))

app = webapp2.WSGIApplication([
('/', MainHandler),
], debug=True)

Baseline sample application code

Upon deploying this application to App Engine, users will get output similar to the following:

image of a website with text saying VisitMe example

VisitMe application sample output

This application is the subject of today's launch video, and the main.py file above along with other application and configuration files can be found in the Module 0 repo folder.

Next steps

Each migration learning module covers one modernization technique. A video outlines the migration while the codelab leads developers through it. Developers will always get a starting codebase ("START") and learn how to do a specific migration, resulting in a completed codebase ("FINISH"). Developers can hit the reset button (back to START) if something goes wrong or compare their solutions to ours (FINISH). The hands-on experience helps users build muscle-memory for when they're ready to do their own migrations.

All of the migration learning modules, corresponding Serverless Migration Station videos (when published), codelab tutorials, START and FINISH code, etc., can all be found in the migration repo. While there's an initial focus on Python 2 and App Engine, you'll also find content for Python 3 users as well as non-App Engine users. We're looking into similar content for other legacy languages as well so stay tuned. We hope you find all these resources helpful in your quest to modernize your serverless apps!

Google Developer Group Spotlight: A conversation with Cloud Architect, Ilias Papachristos

Posted by Jennifer Kohl, Global Program Manager, Google Developer Communities

The Google Developer Groups Spotlight series interviews inspiring leaders of community meetup groups around the world. Our goal is to learn more about what developers are working on, how they’ve grown their skills with the Google Developer Group community, and what tips they might have for us all.

We recently spoke with Ilias Papachristos, Google Developer Group Cloud Thessaloniki Lead in Greece. Check out our conversation with Ilias on Cloud architecture, reading official documentation, and suggested resources to help developers grow professionally.

Tell us a little about yourself?

I’m a family man, ex-army helicopter pilot, Kendo sensei, beta tester at Coursera, Lead of the Google Developer Group Cloud Thessaloniki community, Google Cloud Professional Architect, and a Cloud Board Moderator on the Google Developers Community Leads Platform (CLP).

I love outdoor activities, reading books, listening to music, and cooking for my family and friends!

Can you explain your work in Cloud technologies?

Over my career, I have used Compute Engine for an e-shop, AutoML Tables for an HR company, and have architected the migration of a company in Mumbai. Now I’m consulting for a company on two of their projects: one that uses Cloud Run and another that uses Kubernetes.

Both of them have Cloud SQL and the Kubernetes project will use the AI Platform. We might even end up using Dataflow with BigQuery for the streaming and Scheduler or Manager, but I’m still working out the details.

I love the chance to share knowledge with the developer community. Many days, I open my PC, read the official Google Cloud blog, and share interesting articles on the CLP Cloud Board and GDG Cloud Thessaloniki’s social media accounts. Then, I check Google Cloud’s Medium publication for extra articles. Read, comment, share, repeat!

How did the Google Developer Group community help your Cloud career?

My overall knowledge of Google Cloud has to do with my involvement with Google Developer Groups. It is not just one thing. It’s about everything! At the first European GDG Leads Summit, I met so many people who were sharing their knowledge and offering their help. For a newbie like me it was and still is something that I keep in my heart as a treasure

I’ve also received so many informative lessons on public speaking from Google Developer Group and Google Developer Student Club Leads. They always motivate me to continue talking about the things I love!

What has been the most inspiring part of being a part of your local Google Developer Group?

Collaboration with the rest of the DevFest Hellas Team! For this event, I was a part of a small group of 12 organizers, all of whom never had hosted a large meetup before. With the help of Google Developer Groups, we had so much fun while creating a successful DevFest learning program for 360 people.

What are some technical resources you have found the most helpful for your professional development?

Besides all of the amazing tricks and tips you can learn from the Google Cloud training team and courses on the official YouTube channel, I had the chance to hear a talk by Wietse Venema on Cloud Run. I also have learned so much about AI from Dale Markovitz’s videos on Applied AI. And of course, I can’t leave out Priyanka Vergadia’s posts, articles, and comic-videos!

Official documentation has also been a super important part of my career. Here are five links that I am using right now as an Architect:

  1. Google Cloud Samples
  2. Cloud Architecture Center
  3. Solve with Google Cloud
  4. Google Cloud Solutions
  5. 13 sample architectures to kickstart your Google Cloud journey

How did you become a Google Developer Group Lead?

I am a member of the Digital Analytics community in Thessaloniki, Greece. Their organizer asked me to write articles to start motivating young people. I translated one of the blogs into English and published it on Medium. The Lead of GDG Thessaloniki read them and asked me to become a facilitator for a Cloud Study Jams (CSJ) workshop. I accepted and then traveled to Athens to train three people so that they could also become CSJ facilitators. At the end of the CSJ, I was asked if I wanted to lead a Google Developer Group chapter. I agreed. Maria Encinar and Katharina Lindenthal interviewed me, and I got it!

What would be one piece of advice you have for someone looking to learn more about a specific technology?

Learning has to be an amusing and fun process. And that’s how it’s done with Google Developer Groups all over the world. Join mine, here. It’s the best one. (Wink, wink.)

Want to start growing your career and coding knowledge with developers like Ilias? Then join a Google Developer Group near you, here.