Equitas Health helps thousands of HIV-positive in Ohio, Dayton and Columbus.
Thousands more are reached with our prevention, testing, and other services. We are excited about embracing our expanded mission as a strategic step to further that legacy and its reach by providing care for all – with a focus on a safe and open space and highest quality healthcare for the LGBTQ community and others who are medically underserved.
As I saw that there is a lack of clarity in the articles about this theme.
I also provided two alternatives ways, one pure Python3 and the other Bash based (grep awk tr)
The books I publish in LeanPub have two prices, the suggested price, which is the price I consider the right price for the book, and the minimum price, which is the minimum price I authorized a reader can pay to have it.
You can buy it for the minimum price. You know better than anyone your economy.
So when a reader buys one of my books for the suggested price, instead of the minimum price, it’s really showing how they appreciate may work.
So thanks for all the support and appreciation you show!. :)
One of the motives I chose Leanpub platform is because I think is fair. No DRM, no BS. And the reader can ask for a refund within 45 days if they don’t like the book. It also makes very happy seeing that I don’t have any refunds. I appreciate it as a token of the usefulness of my work. Thanks. :)
Updates to Docker Combat File book (v.16 2021-11-24)
I added a nice trick to reverse engineering the original Dockerfile from a running Image.
I also added another typical copy and paste error into the Troubleshoot section.
Automating and Provisioning Amazon AWS (EC2, EBS, S3, CloudWatch) with boto3 (Amazon’s SDK for Python 3) and Python 3 book
I’m writing a book about how to automate your Amazon AWS tasks using Amazon’s AWS Python 3 SDK boto3, provisioning new instances, stopping, starting, creating volumes, creating/deleting buckets in S3, uploading/downloading files from S3…
It is currently 20% completed. With 43 pages it shows EC2 section already.
I’ve working in carleslibs v.1.0.3. I added MenuUtils class, which allows to assemble menus super quickly, that execute the code referenced in the menu array. Ideal for building CLI applications very fast.
I also added KeyboardUtils class, which allows to ask the user for String within certain lengths allowing or not spaces and/or underscores, and ask user for Integer values within a certain min and max, having 0 for go back.
The plan is to release the new version of carleslibs as soon as I’ve tested it properly.
Only 2% of the viewers donate, so I answered the call every time it was made.
This is my 5th donation to Wikimedia.
I consider that Freedom is very important.
I bought these new books
One of my secrets to be on top is that I’m always studying.
I study all the time, at work and in my free time.
I use Linux Academy and I buy books in paper. I don’t connect with reading in tablets. I think information is stored better when read in paper. I use also a marker and pointers to keep a direct access to the most interesting points on the books.
And I study all kind of themes. Obviously I know a lot of Web Scraping, but there is always room for learning more. And whatever new I learn helps me to be better with my students and more clear writing my books.
It seems that Amazon.co.uk works well again for Ireland. My two last orders arrived on time and I had no problems of border taxes apparently.
Nice Python article
I enjoyed a lot this article, cause explains part of what I did with my student and friend Albert, in a project that analyzes the access logs from Apache for patterns of attempts of exploits, then feeds a database, and then blocks those offender Ip Addresses in the Firewall.
The article only covers the part of Pandas, of reading the access.log file and working with it, but is a very well redacted article:
Here is the complete history of why I migrated all the services from my 11 years old Amazon account to other CSP.
Some lessons can be learned from my adventure.
I migrated my last services from Amazon to GCP
Amazon sent me an email on October 6th, this year 2021, telling me that they will disable EC2-Classic by August 2022. I thought I would not be able to keep my Static Ip’s as in the past VPC Ip’s and EC2-Classic Ip’s were not transferable, so considering that I would loss my Static Ip’s anyway I started to migrate to some to other providers like Digital Ocean.
Is not cool losing Static Ip (Elastic Ip in AWS) Addresses as this is bad for SEO, so given that I though I would lose my Static Ips that have been with me for years, I started to migrate certain services to providers much more economic.
Amazon is terrible communicating, and I talked with some product managers in the past about that, when they lost one of my Volumes, and the email was so cold and terrible that actually that hurt more than Amazon losing my Data. I believed that it was a poorly made Scam and when I realized it was true I reached one of my friends, that is manager there, as I know they care for doing things right, and he organized a meeting with two PM so I can pass my feedback.
The Cloud providers are changing things very fast, and nobody is able to be up to date with the changes, unless their work position allows plenty of time to get updated. Even if pages of documentation are provided, you have to react to an event that they externally generated forcing you to action. Action to read all the documentation about EC2-Classic migrations, action to prepare to have migrated by August 2022.
So August 2022… I was counting that I had plenty of time but I’m writing a new book about using the Amazon SDK for Python, boto3, and I was doing some API calls and they started to fail in a very unusual way, Exceptions with timeout, but only for the only region where I had EC2-Classic.
urllib3.exceptions.NewConnectionError: <botocore.awsrequest.AWSHTTPSConnection object at 0x7f0347d545e0>: Failed to establish a new connection: [Errno -2] Name or service not known
But if I switched to another region name, it would work:
I made a mistake in here, the region name is “us-east-1” and not “us-east-1a“. “us-east-1a” is the availability zone. So the SDK was giving a timeout because in order to connect to the endpoint it uses the region name as part of the hostname. So it doesn’t find that endpoint because it doesn’t exist.
I never understood why a company like Amazon is unable to provide the SDK with a sample project or projects 100% working, with the source code so people has a base that works to build up.
Every API that I have created, I have provided it with documentation but also with example for several languages for how to use it.
In 2013 I was CTO of an online travel agency, and we had meta-searchers consuming our API and we were having several hundreds of thousands requests per second. Everything was perfectly documented, examples were provided for several languages, the document and the SDK had version numbers…
Honestly, I didn’t realize my typo in the region and I connected to the Amazon Console to investigate and I saw this.
Honestly, when I read it I understood that they were going to end my EC2 Networking the 30th of October. It was 29th. I misunderstood.
It was my fault not reading it well to the end, I got shocked by the first part telling about shutdown and I didn’t fully understood as they were going to shutdown EC2-Classic for the zones I didn’t had anything running only.
From the long errors (3 exceptions chained) I didn’t realize that the endpoint is built with the region name. (And I was passing the availability zone)
botocore.exceptions.EndpointConnectionError: Could not connect to the endpoint URL: "https://ec2.us-east-1a.amazonaws.com/"
Here is when I say that a good SDM would had thought and cared for the Developers more, and would had made the SDK to check if that region exists. How difficult is to create a SDK a bit more clever that detects a invalid region id?. It is not difficult.
It is true that it was late in the evening and I was tired of all the day, and two days of the week between work and zoom university classes I work 15 hours and 13 hours respectively, not counting the assignments, so by the end of the week I am very tired. But that’s why it is very important to follow methodology and to read well. I think Amazon has 50% of the fault by the way they do things: how the created the SDK, how they communicate, and by the errors that the console returned me when I tried to create a VPC instance of an EC2-Classic AMI (they seem related to the fact I had old VPC Network objects with shorter hash than the current they use) and the other 50% was my fault for not identifying the source of the error, and not reading the message in their website well.
But the fact that there were having those errors in the API’s and timeouts made me believe they were going to cut the EC2-Classic Networking the next day.
All the mistakes fall together in a perfect storm.
I checked for documentation and I saw it was possible to migrate my Static Ip’s to VPC Static Ip’s.
It was Friday evening, and I cancelled my plans, in order to migrate the Blog to VPC in an attempt to keep running it with Amazon.
As Cloud Architect, I like to have running instances in several CSP as it allows me to stay up to date with the changes they do.
I checked the documentation for the migration. Disassociating the Static Ip (Elastic Ip in AWS jargon) was easy. Turning into VPC as well.
As I progressed, what had to be easy turned into a nightmare, as I was getting many errors from the Amazon API, without any information, and my Instances were not created.
I figured out that their API could have problems with old VPC objects I created time ago, so I had to create new objects for several things.
I managed to spawn my instances but they were being launch and terminated instantly without information. Frustrating.
When launching a new instance from the AMI (a Snapshot of the blog), I was giving shown options to add more volumes without any sense. My Instance was using 16GB from a 20GB total Space, and I was shown different volume configs, depending on the instance, in some case an additional 20GB volume, in other small SSD, ephemeral and 10 GB for the AMI (which requires at least 16GB).
After some fight I manage to make it work after deleting the volumes that made no sense, and keeping only one of 20GB, the same size of my AMI.
But then my nightmare started to make the VPC Instance to have Internet access and to be seen from outside. I had to create a new Internet Gateway, NAT, Network, etc…
As mentioned the old objects I was trying to reusing were making the process to fail.
I was running out of time, and I thought in few time they were going to shutdown EC2-Classic network (as I did not read correctly), so I decided to download everything and to migrate to another provider. For doing that first I blocked all the traffic, except for my Ip.
I worked in parallel, creating the new config in Google Cloud, just in case I had forgot something. I had created a document for the migration and it was accurate.
I managed to do everything fast enough. The slower part was to download all the Data, as I hold entire VM’s for projects like Cassandra Universal Driver.
Then I powered off my Amazon Instance for the Blog forever.
In GCP I blocked all the traffic in the firewall, except for my Ip, so I could work calmly.
When everything was ready, I had to redirect the DNS to the new static Ip from Google.
The DNS provider I used had implemented some changes in their API so I was getting errors replacing my old entry ‘.’ (their JSON calls returned Internal Server Error). Finally I figured it out how to workaround it and I was able to confirm that the first service was up and running.
I did some tests to make sure there were not unexpected permission problems, entries in the logs, etc…
Only then I opened the Google Firewall. I have a second firewall in each instance where I block or open at Ip tables level what I want. Basically abusive bot’s IPs trying to find exploits or brute force by dictionary passwords.
I checked with my phone, without Wifi that the Firewall was all good. (It is always a good idea to use another external Ip, different from the management one, to check)
I’ve raised back the price for my books to normal levels. I’ve been keeping the price to the minimum to help people that wanted to learn during covid-19. I consider that who wanted to learn has already done it.
I still have bundles with a somewhat reduced price, and I authorized LeanPub platform to do discounts up to 50% at their discretion.
This version adds class StringUtils, and a set of methods to perform different useful tasks with Strings, like converting a number to the biggest unit with sense, like a large number of bytes to PB, a smaller one to TB, or GB, MB, KB, justifying strings to the right or to the left, and cap the number of chars to a specified one, etc…
I have many libraries that I’ve been building across the years, and I’m liberating them as Open Source, as soon as I have time to make sure that are compatible with Python 3.5 or superior (and with Python 2.6 when possible), and I have time to add a decent Unit Testing Code Coverage.
I try to release libraries that have no other dependencies. After that I’ll start releasing my libs that have dependencies, like to work with MySQL, SQLite, web scrapping, etc…
However the 12 Gbps SAS SSD were returning Checksum errors in ZFS when I did copy information or I ran scrub. I’m afraid the enclosure can only provide 6 Gbps at max, or a poor connection. Cables or expanders use to be the reason. I ordered new cables to make a direct connection to the HBA Controller without the enclosure to validate my theory and the drives stopped showing errors.
There is something good in all bad: I have been able to document and explain how to troubleshoot, actual errors in ZFS, in my book and talk about the problems with the cables, and the advantages of using a SAS controller even if you use SATA drives.
I got my first Excellent in an Assignment in an Ireland university, which makes me specially happy. And I keep going on studying in Linux Academy, the last course I did was GCP and Terraform, even if I knew both it helps me to keep my skills sharp.
I share with you some offers and charity bundles that I enrolled and enjoyed a lot:
There is an offer with Microsoft Pass which is that we can use Disney+ for free during 30 days.
I started watching the Mandalorian, Season 2, and is wonderfully displayed in 4K. The quality of the video surprised me. Not that many contents in Netflix are 4K and I really enjoyed the great quality of the image.
Humble Bundle offers a pack of 8 VR games per €13.45. If you like Virtual Reality and have your headset, this pack is amazing, and the benefits go to charity: Movember. The games are downloaded from Steam and the pack will last for 14 days.
This article talks about how at Riot Games they use Slack. Slack is really a powerful tool, and also makes the communication more human in companies with their approach and the funny icons and /giphy. I’m very serious when it comes to work but I recognize the friendly, warm, human and lovely touch these kind of animated icons bring to the conversations.
I updated it the Nov-01, as I normally do, bringing more content.
I’ve been paid the royalties for he past two months and I reinvested everything (and more from my pocket) in Hardware for working with ZFS.
I was offered by an editorial in The States to publish Python Combat Guide and other of my books worldwide. I was thinking it for a while. It was very good money, translation to multiple languages and platforms and marketing and a lot of promotion, but I would had loss the rights and the Freedom I have now, like the possibility to offer discount coupons to who I want and to update the contents often. So to celebrate my decision for you, readers of the blog, during September, I provide a discounted price of $5 USD for the fist 100 sales instead of the $25 USD suggested price. Use the following link:
As part of my effort to contributing with nice Open Source products to the Community I have made some investments to keep contributing to:
My old tool for managing ZFS and Network shares easily
I’m writing a new book about managing ZFS for Small Business too, so I show how to operate on this hardware, good points and downsides.
I’m assembling a new Pc with ZFS plenty of Disk Storage within a mix of:
SAS Enterprise grade SSD 2.5″
SATA 12Gb Enterprise grade SSD 2.5″
SATA SSD 2.5″
SATA HDD 2TB 2.5″
SATA HDD 2TB 3.5″
I’m a big fan of Intel, but this time I have chosen AMD. Concretely a AMD Ryzen 7 3700X AM4 8 Core / 16 Threads, 3.6 GHz to 4.4 GHz with Turbo. The reason I chose this CPU is because it only uses 65W but still has 8 Cores / 16 Threads.
Also I want to see the performance of this AMD Ryzen with CMIPS and another important reason is that AMD motherboards support PCI 4.0. I have bought a NVMe SSD Samsung 980 PRO PCI 4.0 (x4) able to read at 6,400 MB/s. I will use this AMD box for running VMs as well. Basically Virtual Box and Docker.
I’ve been surprised that for 169.99 GBP I can have a very good Asus Motherboard with a 2.5 Gb Ethernet: ASUS ROG STRIX B550-F GAMING, AMD B550, AM4, DDR4, PCIe 4.0, SATA3, Dual M.2, CrossFire, 2.5GbE, USB 3.2 Gen2 A+C, ATX.
In order to have an Asus motherboard with a 2.5 Gb Ethernet for Intel I had to jump to a 254 GBP motherboard and Intel is still PCI 3.0. Actually there are PCI 10Gb NICs at 80 GBP so at some point I’ll upgrade my home network from Gigabit to 10 Gb. That will come slowly, but if the new equipment I assemble has 2.5 Gb when I upgrade the main switches to 10 Gb, at least I’ll be able to communicate at 2.5 Gb without ant additional change.
Also memory at 3200, speed that the AMD motherboard can provide, is more than affordable.
This new server will have 64 GB of RAM (Corsair DDR4 Vengeance PC4-25600 (3200)), as I plan to run VMs and use Volumes mounted via iSCSI and locally as block devices to improve my Software. I’ve bought a new UPS to keep it running in case power goes down. That’s something that doesn’t happen often in my city in Ireland, honestly, but I never forget that this happens in Barcelona two or three times per year, and that a high tension spike can burn your motherboard, drives, or electronics like the TV or the fridge. I’ve bought as well a new KVM Switch, a HDMI 4K and USB too one, so I don’t have to have so many keyboards. My logitech M720 allowed me to use it with 3 computers, but still I want something more operational. The KVM I bought allow me to switch with a button or within a hotkey in the keyboard.
I bought a new Icy box fox handling 6 2.5 drives in just one bay of the tower, and a 850 Watt Corsair PSU that will be able to power the many drives I want at the same time.
I contribute a lot to Open Source, and many years ago before Open Source existed I was creating Freeware Software. But I think that good commercial Software deserves to be supported. Like everything in life, if they are doing a good work that is useful to me, why not giving them support?. It is also a way to make sure they will continue producing amazing Software. And in the other hand, myself, I create Software. Some times commercial Software, and I like to be paid, so I apply the same principle.
After some work reviewing it and ensuring it has the expected quality, I finally published my book Python Combat Guide.
Is an atypical creation. Is more a Master Class to my best friend, it could be a SDM, TL leading a small Software Development department, a Coder or a Scientist wanting to join IT as programmer and to learn a lot of stuff very quickly, than rather a formal Python Book for learning. Absolutely is not for beginners.
If you want to buy it, to explore the TOC, extended description…