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    • R

      Jitsi Meet auntenticacion does not work in latest version
      IT Discussion • linux docker jitsi meet security+ asterisk • • rickygm

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    • B

      Solved How safe are images on docker hub ?
      IT Discussion • docker unifi controller • • BraswellJay

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      stacksofplates

      It all depends. You can inspect the layers of the images. You can also scan with trivy, snyk, etc.

      You can also do what @IRJ mentioned. There’sa few ways to handle this.

    • stacksofplates

      BoltDB API
      IT Discussion • golang go boltdb docker • • stacksofplates

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    • scottalanmiller

      Install Skyetel Postcards on CentOS 7
      IT Discussion • scale hc3 docker skyetel postcards centos centos 7 vultr linux sms texting • • scottalanmiller

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      scottalanmiller

      @marcinozga said in Install Skyetel Postcards on CentOS 7:

      @scottalanmiller said in Install Skyetel Postcards on CentOS 7:

      @marcinozga said in Install Skyetel Postcards on CentOS 7:

      @black3dynamite said in Install Skyetel Postcards on CentOS 7:

      Still preferred fallocate instead of dd to create a swap file?

      dd if=/dev/zero of=/swapfile count=4096 bs=1MiB && chmod 600 /swapfile && mkswap /swapfile && swapon /swapfile && echo "/swapfile swap swap defaults 0 0">>/etc/fstab

      Still using swap file? Memory is cheap. I don't recall a server where I created swap partition or swap file.

      Memory is NOT cheap, not at all.

      It is if you own it. If you rent your hardware, yeah, it adds up.

      Even if I own it, throwing away 2-3GB of RAM makes no sense. Now, if I own it, I can easily assign 4GB of RAM then remove it once installed, by why? That's harder to script and still no benefit.

      It's a bad habit to see resources as cheap and so waste them just because you can. Extra memory doesn't improve performance, it hurts it (just the tiniest bit). And it's not free, if you always apply twice as much RAM as you use (or four times, here), that gets costly one way or another. Either you wasted money overspeccing in the beginning, or you are stuck buying more now.

    • Pete.S

      Unsolved Trying to use docker but have no idea what I'm doing...
      IT Discussion • docker • • Pete.S

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      stacksofplates

      Another advantage to application containers is integrations with things like VSCode. Your whole dev environment for a project can live in the container. It makes entry to helping with projects much easier. For example you can include a Dockerfile in your project and VSCode will build the container according to your Dockerfile. Then you can have VSCode spin up the container and attach to it and you can do the development inside of the container. That way the contributors don't need to install anything on their systems to work with your project. It's a really nice work flow.

    • Oksana

      Containers pros and cons 101
      Starwind • docker lxd containerization virtualization • • Oksana

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    • scottalanmiller

      MailCow in Production Datacenter
      IT Discussion • mailcow email smtp docker • • scottalanmiller

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      scottalanmiller

      @Dashrender said in MailCow in Production Datacenter:

      Question for Scott - the customer wanted self hosted email? why?

      It's a commercial mail hosting business. Among other things.

    • scottalanmiller

      Docker for Production Use of Third Party Software
      IT Discussion • docker containerization • • scottalanmiller

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      warren.stanley

      @scottalanmiller these discussions echo my thoughts exactly. I'm only (hesitantly) learning Docker now, but it feels like it's not a long term answer(I'm possibly too late to the party?), as other approaches are increasing in mind-share.

    • IRJ

      HIDS for Docker Host
      IT Discussion • wazuh docker hids intrustion dectection • • IRJ

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    • IRJ

      Conatainers (Docker) vs VMs - When and Why?
      IT Discussion • docker containers virtualization vms • • IRJ

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      scottalanmiller

      @JaredBusch said in Conatainers (Docker) vs VMs - When and Why?:

      @Obsolesce said in Conatainers (Docker) vs VMs - When and Why?:

      Are there many use cases in the SMB outside of Dev?

      Not even in dev really for the SMB. Just use a single VM to do the work. SMB rarely needs to scale.

      Other than as you stated, the solution is presented that way. Like UNMS.

      Even enterprise rarely need to scale that way. It's more for hosting companies than anything.

    • travisdh1

      Install AWX on CentOS 7 with Docker
      IT Discussion • awx ansible docker centos7 • • travisdh1

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      stacksofplates

      Another thing to note. I believe it's the rabbitmq password that can't accept an @ in the password.

    • matteo nunziati

      unlimited windows containers on a single host?
      IT Discussion • docker windows server 2016 licences container • • matteo nunziati

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      matteo nunziati

      @scottalanmiller sorry I wanted to answer @flaxking but ended up replying to yours reply xD

    • D

      Kubernetes (Kubespray) Issue.
      IT Discussion • kubernetes kubespray containers containerization docker • • devops1

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      stacksofplates

      @devops1 said in Kubernetes (Kubespray) Issue.:

      @stacksofplates Thank you very much It works.

      No problem!

    • Emad R

      Check my 2 min audio theory on Containers
      IT Discussion • containers container docker virtualization • • Emad R

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      scottalanmiller

      @flaxking said in Check my 2 min audio theory on Containers:

      @scottalanmiller said in Check my 2 min audio theory on Containers:

      @flaxking said in Check my 2 min audio theory on Containers:

      What you're talking about is one aspect of part of implementing DevOps that is often misinterpreted to mean the whole of it. And yes, it is stupid to call that DevOps. That's just Ops using different tools.

      I see it as the opposite. Patrick's core DevOps...

      "Thanks to the devopsdays conference, the idea of devops seems to live on. While talking with other people about it, I realize that it is difficult to frame it within the current IT landscape. At lot of the ideas are coming from different kinds of emerging technologies (T) and process management (P) approaches.

      For me the two most important observations are:

      there is a increase in feedback loops between business, all parts of the delivery process and operations thanks to this feedback loops we increase the quality and speed up the flow"

      This is the core of DevOps, not well described, but pretty clearly about IT, not development. This is the core. Very, very loosely defined to the point of useless, sure.

      Then things like DevOps talking dev itself is the extra, the tack on later. It's not "part of" devops, any more than it is of any operations. And just how operations doesn't cease to exist without developers, neither does DevOps.

      I believe everything on that page is all meant to be within the context of companies doing development. But I agree, the core of DevOps is about Ops and Business practices. However, I firmly believe the name DevOps comes from Ops and Development working together, and thus the reason why discussions of DevOps implementation specifics centre around companies doing software development. Though just based on that page, I could see why someone could still take a different view. However, I consider The DevOps Handbook to be the definitive source, rather than notes on the initial discussions.

      I think doing that makes DevOps a pointless, useless concept. Hopefully that's not what he intended. As an ops practice, it has tremendous value. As a merger of dev and ops, it's just bluster.

    • Oksana

      Install Gitlab, HTTPS and the container registry
      Starwind • gitlab starwind https docker • • Oksana

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    • Kelly

      Container Networking
      IT Discussion • kubernetes docker containers containerization networking • • Kelly

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    • DustinB3403

      Is Docker a joke or do I just not see the point?
      IT Discussion • docker virtualization • • DustinB3403

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      scottalanmiller

      @vhinzsanchez Containers are lighter and faster. And they are a type of virtual machine, Type-C virtualization. So things like performance and density alone are reasons that containers are popular.

    • Oksana

      Getting hands on Windows Containers with graphical user interfaces
      Starwind • docker windows gui cli microsoft kitematic portainer dockstation • • Oksana

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    • scale

      Running Docker Containers in Scale HC3 VMs ... on Linux or Windows
      Scale Legion • scale scale hc3 docker virtualization linux windows hyperconvergence hyperconverged • • scale

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    • Emad R

      I really dont see Docker as stable, and perhaps neither should you.
      IT Discussion • docker suck • • Emad R

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      D

      Please mention another reason for not using Docker with Linux based operating systems:
      If the UID on your host system doesn’t match the UID of the user inside your Docker container, you will have file ownership issues.

      I think most people don’t encounter this because they are probably the only user on their development machine, and most people only add a single user in their Dockerfile to run their app.

      I’m not sure about other Linuxes, but Ubuntu will assign the first user a UID of 1000 so if you’re the first user on an Ubuntu host and you have an Ubuntu-based Docker image, you won’t even notice.

      Personally, i was given advice to avoid host volumes even though the case can be resolved with bindfs and a privileged machine in a Windows environment.