Welcome to the Ozzy blogger!

Wednesday, November 13, 2024

Home (development) automation project

It's been a long time since I posted here. My goal is to post a blog entry once a week.

Currently I am working on creating a Minikube stand alone server using VMware workstation. I am running Ubuntu 24.01. So far things are going well. I am documenting the steps to setup Minikube using Notebook LM. I really like Notebook LM, the AI chat is pretty good.

Back to the Minikube project, I have a few items I need to research. My goal is to complete the following 2 items next week or at the very least, learn enough to know if I need to change my approach.

Stop using DHCP for the bridge network adapter for the VMWare Ubuntu VM. I'm able to work around this using the DNS name. However, when running the dashboard-proxy, I get failures due to the IP address changing.

This should be pretty easy, I just need to figure out the DHCP range my router uses and choose an IP that is not within the range.

While I was able to connect to some services, I would like to learn more about the egress and hopefully use third level domain naming.

This will take some time, I haven't tried customizing a DNS server. I have the basic concepts on how DNS works, but I am excited to learn how that works!

For reference, this is the dashboard-proxy error

error: error upgrading connection: error dialing backend: tls: failed to verify certificate: x509: certificate is valid for XXX.XXX.XXX.20, <IP6-address>, not XXX.XXX.XXX.43

Traceback (most recent call last):

File "/snap/microk8s/7394/scripts/wrappers/dashboard_proxy.py", line 111, in <module>

dashboard_proxy()

File "/snap/microk8s/7394/usr/lib/python3/dist-packages/click/core.py", line 764, in __call__

return self.main(*args, **kwargs)

File "/snap/microk8s/7394/usr/lib/python3/dist-packages/click/core.py", line 717, in main

rv = self.invoke(ctx)

File "/snap/microk8s/7394/usr/lib/python3/dist-packages/click/core.py", line 956, in invoke

return ctx.invoke(self.callback, **ctx.params)

File "/snap/microk8s/7394/usr/lib/python3/dist-packages/click/core.py", line 555, in invoke

return callback(*args, **kwargs)

File "/snap/microk8s/7394/scripts/wrappers/dashboard_proxy.py", line 105, in dashboard_proxy

check_output(command)

File "/snap/microk8s/7394/usr/lib/python3.8/subprocess.py", line 415, in check_output

return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,

File "/snap/microk8s/7394/usr/lib/python3.8/subprocess.py", line 516, in run

raise CalledProcessError(retcode, process.args,

subprocess.CalledProcessError: Command '['/snap/microk8s/7394/microk8s-kubectl.wrapper', 'port-forward', '-n', 'kube-system', 'service/kubernetes-dashboard', '10443:443', '--address', '0.0.0.0']' returned non-zero exit status 1.

Wednesday, December 30, 2020

Pixi JS sprite click and drag mouse issue

I've started a new project with Pixi JS. I've used this tutorial (along with a lot of stack overflow)

https://github.com/kittykatattack/learningPixi

and it's been a great site to get a better understanding of HTML5 development with pixi js framework. However, I ran into an issue with clicking an dragging sprites. The example the Pixi JS site

https://pixijs.io/examples/#/interaction/dragging.js

const app = new PIXI.Application({ backgroundColor: 0x1099bb });
document.body.appendChild(app.view);

// create a texture from an image path
const texture = PIXI.Texture.from('examples/assets/bunny.png');

// Scale mode for pixelation
texture.baseTexture.scaleMode = PIXI.SCALE_MODES.NEAREST;

for (let i = 0; i < 10; i++) {
    createBunny(
        Math.floor(Math.random() * app.screen.width),
        Math.floor(Math.random() * app.screen.height),
    );
}

function createBunny(x, y) {
    // create our little bunny friend..
    const bunny = new PIXI.Sprite(texture);

    // enable the bunny to be interactive... this will allow it to respond to mouse and touch events
    bunny.interactive = true;

    // this button mode will mean the hand cursor appears when you roll over the bunny with your mouse
    bunny.buttonMode = true;

    // center the bunny's anchor point
    bunny.anchor.set(0.5);

    // make it a bit bigger, so it's easier to grab
    bunny.scale.set(3);

    // setup events for mouse + touch using
    // the pointer events
    bunny
        .on('pointerdown', onDragStart)
        .on('pointerup', onDragEnd)
        .on('pointerupoutside', onDragEnd)
        .on('pointermove', onDragMove);

    // For mouse-only events
    // .on('mousedown', onDragStart)
    // .on('mouseup', onDragEnd)
    // .on('mouseupoutside', onDragEnd)
    // .on('mousemove', onDragMove);

    // For touch-only events
    // .on('touchstart', onDragStart)
    // .on('touchend', onDragEnd)
    // .on('touchendoutside', onDragEnd)
    // .on('touchmove', onDragMove);

    // move the sprite to its designated position
    bunny.x = x;
    bunny.y = y;

    // add it to the stage
    app.stage.addChild(bunny);
}

function onDragStart(event) {
    // store a reference to the data
    // the reason for this is because of multitouch
    // we want to track the movement of this particular touch
    this.data = event.data;
    this.alpha = 0.5;
    this.dragging = true;
}

function onDragEnd() {
    this.alpha = 1;
    this.dragging = false;
    // set the interaction data to null
    this.data = null;
}

function onDragMove() {
    if (this.dragging) {
        const newPosition = this.data.getLocalPosition(this.parent);
        this.x = newPosition.x;
        this.y = newPosition.y;
    }
}

has bunny's that you can click on and drag. However, if you click on the lower right leg of the bunny and start to drag, the sprite jumps so that the center of the bunny is where the mouse is:

It seems trivial but when you are using larger sprites, it becomes borderline non-functional. Looking at the code you can see bunny.anchor.set(0.5) will move the sprite's anchor to the center instead of the top left. If you comment this out, you will see the the bunny jump more when you attempt to click and drag.

So how to fix this? So far I haven't been able to find a mouse location related to sprint you are clicking on. However, you can extract the mouse location for the app (screen area) and the sprite's location. From this, you can calculate an offset x and y coordinate when to initially mouseDown and drag. The offset helps update the anchor coordinate to prevent the jumping around of the sprite like so

Here is the updated code. Hope this helps someone!

const app = new PIXI.Application({ backgroundColor: 0x1099bb });
document.body.appendChild(app.view);

// create a texture from an image path
const texture = PIXI.Texture.from('examples/assets/bunny.png');

// Scale mode for pixelation
texture.baseTexture.scaleMode = PIXI.SCALE_MODES.NEAREST;

// Sprite drag offset
let spriteMouseLocationOffsetX = 0;
let spriteMouseLocationOffsetY = 0;


for (let i = 0; i < 10; i++) {
    createBunny(
        Math.floor(Math.random() * app.screen.width),
        Math.floor(Math.random() * app.screen.height),
    );
}

function createBunny(x, y) {
    // create our little bunny friend..
    const bunny = new PIXI.Sprite(texture);

    // enable the bunny to be interactive... this will allow it to respond to mouse and touch events
    bunny.interactive = true;

    // this button mode will mean the hand cursor appears when you roll over the bunny with your mouse
    bunny.buttonMode = true;

    // center the bunny's anchor point
    bunny.anchor.set(0.5);

    // make it a bit bigger, so it's easier to grab
    bunny.scale.set(3);

    // setup events for mouse + touch using
    // the pointer events
     bunny
        .on('pointerdown', onDragStart)
        .on('pointerup', onDragEnd)
        .on('pointerupoutside', onDragEnd)
        .on('pointermove', onDragMove);

    //For mouse-only events
    // .on('mousedown', onDragStart)
    // .on('mouseup', onDragEnd)
    // .on('mouseupoutside', onDragEnd)
    // .on('mousemove', onDragMove);

    // For touch-only events
    // .on('touchstart', onDragStart)
    // .on('touchend', onDragEnd)
    // .on('touchendoutside', onDragEnd)
    // .on('touchmove', onDragMove);

    // move the sprite to its designated position
    bunny.x = x;
    bunny.y = y;

    // add it to the stage
    app.stage.addChild(bunny);
}

function onDragStart(event) {
    // store a reference to the data
    // the reason for this is because of multitouch
    // we want to track the movement of this particular touch
    this.data = event.data;
    this.alpha = 0.5;
    this.dragging = true;
    // get the mouse coursor location within the window
    const appCursorLocation = this.data.getLocalPosition(this.parent);
    // calculate the offset with the app cursor location - sprite location
    spriteMouseLocationOffsetX = appCursorLocation.x - this.x 
    spriteMouseLocationOffsetY = appCursorLocation.y - this.y 
}

function onDragEnd() {
    this.alpha = 1;
    this.dragging = false;
    // set the interaction data to null
    this.data = null;
    spriteMouseLocationOffsetX = 0;
    spriteMouseLocationOffsetY = 0;
}

function onDragMove() {
    if (this.dragging) {
        const newPosition = this.data.getLocalPosition(this.parent);
        // adjust the sprite prosition using the offset
        this.x = newPosition.x - spriteMouseLocationOffsetX;
        this.y = newPosition.y - spriteMouseLocationOffsetY;
    }
}

Thursday, September 5, 2019

Back from my blogging hiatus

Hello, I'm back from my blogging hiatus. Lots of things have happened in the last 7 years. I've been more focused on software development using Java and Spring framework. I'm starting to put together some new blog entries around my development experiences and also my home development environment.

Currently I have 2 raspberry pie 3b machines that are used for my development environment at home. One is a nas and the other is a Jenkins server. I also started using an old laptop for gitlab due to the ram requirements. Working with raspberry pies have been a little difficult due to a lot of docker images are not built for arm and I had to do my best at re-creating the Dockerfile.

Anyways, I'm going to be adding more content soon.

Monday, July 22, 2013

Saving profile documents difference between Java and LotusScript/Formula

I ran across an issue that has been driving me nuts! I'm not sure if this is an error or by design. When I am working with profiledocuments in LotusScript and Formula languages, I can pull the profile document without giving a unique key parameter because it isn't required.

However, in Java, I can pull that same profile document, using "" as a unique key because it's required, read the correct values, and save it. However, when I save the profile document in Java, it doesn't update the profile document that the LotusScript and Formula languages. It seems to save a profile document separate from the LotusScript and Formula.

After I save the Java version of the profile document, I can only retrieve the Java version. When I open the profile document using LotusScript / Formula, it only retrieves the LotusScript / Formula version. Even after using getprofiledocumentcollection shows only one document, the one that will show depends on the language you are using.

However, when I start using a unique key, this problem goes away. ug. Anyone else had this issue or found a fix?

New job

I accepted a new job back in December 2012 that does not involve Lotus Notes/Domino. So unfortunately I won't be posting any more on Lotus Notes/Domino. In the next month I will try and finish up my draft posts from over the years and post them. I will still answer any questions anyone has.

Sunday, September 2, 2012

Windows file share error "the referenced account is currently locked out and may not be logged on to"

I see this error from time to time when connecting to a network share from a new Windows 2008 server to an old Windows server. However, I can usually connect using \\servername from the old server to the new server. After a few times of putting in my password to connect, the user account on the old Windows server becomes locked out. So then I get the error message "Account is currently locked out and may not be logged on to".

I also get the error "the specified network password is not correct". This error message led me to the correct answer. Since the issue happened on a Windows server 2008, I followed the procedure in the reference link below:

1. run secpol.msc
2 Navigate to Local Policies > Security options > Network security: LAN manager authentication. On my Windows 2008 server, it was blank
3. Next I selected NTLMV2 session secure if negotiated

No reboot needed, it started working after the change. After I was finished copying files, I change it to "NTVLM2 responses only" value.

reference:
http://serverfault.com/questions/91797/windows7-the-specified-network-password-is-not-correct-when-the-password-is

Wednesday, August 22, 2012

Lotus Connections / IBM HTTP Server (Apache) root directory redirect to application

When configuring Lotus Connections to use IBM HTTP server, it's always annoyed me that when typing in the URL minus an application, it takes me to an IBM HTTP server help screen. I've configured a redirect in Lotus Connections 2.5, however, I was unable to find my documentation. There are a few ways to accomplish this but I'm going to cover the one that works best for me. ( might not be the best solution for you ) So this post is how to configure a URL redirect / rewrite from the root / to an application ( /homepage ) in Lotus Connections using IBM HTTP server.

1. First, locate your httpd.conf file the IBM HTTP Server is using. to load the module for redirect / rewrite, locate the line that says

#LoadModule rewrite_module modules/mod_rewrite.so

and remove the # to uncomment

LoadModule rewrite_module modules/mod_rewrite.so

2. Next, locate the line that says DocumentRoot

and place a # in front of the line to comment it out.

3. Next locate the VirtualHost *:443
FYI, blogger.com won't let me post the correct syntax for the VirtualHost *:443, please see the image below for the correct syntax

VirtualHost *:443

Servername lc.ozzyblogger.com

SSLEnable
/VirtualHost

and add two lines

VirtualHost *:443

Servername lc.ozzyblogger.com

SSLEnable

RewriteEngine on

RewriteRule ^/$ /homepage [R,L]
/VirtualHost

This will load the lc.theozzyblogger.com/homepage application when you type lc.ozzyblogger.com/ in the url btw lc.theozzyblogger.com is not a real website, just an example :)

Note:

^ is the beginning of the line
$ is the end of the line
. is any single character except new line
* is zero or more of character

4. Last, create a virtualhost entry for all port 80 requests to redirect to SSL at the end of the file

FYI, blogger.com won't let me post the correct syntax for the VirtualHost *:80, please see the image below for the correct syntax

VirtualHost *:80

RewriteEngine on

RewriteRule ^/$ /homepage [R,L]

# handy for seeing what's going on when the web server tries to redirect

#RewriteLog "C:/rwlog.txt"

#RewriteLogLevel 1

# if the port's not 443 (ssl)...

RewriteCond %{SERVER_PORT} !^443$

#...redirect it to the same page but make it SSL

RewriteRule ^(.*) https://%{SERVER_NAME}%{REQUEST_URI} [L,R]
/VirtualHost

That will take care of any requests that are typed as http://lc.theozzyblogger.com and redirect / rewrite as https://lc.theozzyblogger.com/homepage

Here are the web pages used as reference:

Configuring the IBM HTTP Server for SSL

http://publib.boulder.ibm.com/infocenter/ltscnnct/v2r0/index.jsp?topic=/com.ibm.lc_2.0_IC/t_configure_ihs.html

Redirecting non-SSL (HTTP) requests to SSL (HTTPS) requests with IBM HTTP Server or Apache, and WebSphere Application Server

http://www-01.ibm.com/support/docview.wss?uid=swg21107738

IBM HTTP Server URL redirect and rewrite
http://publib.boulder.ibm.com/infocenter/wchelp/v5r6m1/index.jsp?topic=/com.ibm.commerce.esupport.doc/html/Configuration/swg21231659.html