Install Docker on Termux

answerfile

KEYMAPOPTS="us us"
HOSTNAMEOPTS="-n alpine"
INTERFACESOPTS="auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp
    hostname alpine
"
TIMEZONEOPTS="-z UTC"
PROXYOPTS="none"
APKREPOSOPTS="http://dl-cdn.alpinelinux.org/alpine/v3.12/main http://dl-cdn.alpinelinux.org/alpine/v3.12/community"
SSHDOPTS="-c openssh"
NTPOPTS="-c busybox"
DISKOPTS="-v -m sys -s 0 /dev/sda"

docker-termux.md

Docker on Termux [in a VM]

Create a Linux VM and install Docker in it so you can (slowly) run x86 Docker containers on your Android device.

Recommended to use SSH or external keyboard to execute the following commands unless you want sore thumbs. See https://wiki.termux.com/wiki/Remote_Access#SSH

• Install QEMU

   pkg install qemu-utils qemu-common qemu-system-x86_64-headless
  

• Download Alpine Linux 3.12 (virt optimized) ISO

   mkdir alpine && cd $_
   wget http://dl-cdn.alpinelinux.org/alpine/v3.12/releases/x86_64/alpine-virt-3.12.3-x86_64.iso
  

• Create disk (note it won't actually take 4GB of space, more like 500MB)

   qemu-img create -f qcow2 alpine.img 4G
  

• Boot it up

  qemu-system-x86_64 -machine q35 -m 1024 -smp cpus=2 -cpu qemu64 \
    -drive if=pflash,format=raw,read-only,file=$PREFIX/share/qemu/edk2-x86_64-code.fd \
    -netdev user,id=n1,hostfwd=tcp::2222-:22 -device virtio-net,netdev=n1 \
    -cdrom alpine-virt-3.12.3-x86_64.iso \
    -nographic alpine.img
  

• Login with user root (no password)

• Setup network (press Enter to use defaults):

   localhost:~# setup-interfaces
   Available interfaces are: eth0.
   Enter '?' for help on bridges, bonding and vlans.
   Which one do you want to initialize? (or '?' or 'done') [eth0] 
   Ip address for eth0? (or 'dhcp', 'none', '?') [dhcp] 
   Do you want to do any manual network configuration? [no] 
   localhost:~# ifup eth0
  

• Create an answerfile to speed up installation:

  localhost:~# wget https://gist.githubusercontent.com/oofnikj/e79aef095cd08756f7f26ed244355d62/raw/answerfile
  

• Patch setup-disk to enable serial console output on boot

  localhost:~# sed -i -E 's/(local kernel_opts)=.*/\1="console=ttyS0"/' /sbin/setup-disk
  

• Run setup to install to disk

  localhost:~# setup-alpine -f answerfile
  

• Once installation is complete, power off the VM (command poweroff) and boot again without cdrom:

  qemu-system-x86_64 -machine q35 -m 1024 -smp cpus=2 -cpu qemu64 \
    -drive if=pflash,format=raw,read-only,file=$PREFIX/share/qemu/edk2-x86_64-code.fd \
    -netdev user,id=n1,hostfwd=tcp::2222-:22 -device virtio-net,netdev=n1 \
    -nographic alpine.img
  

• Install docker and enable on boot:

  alpine:~# apk update && apk add docker
  alpine:~# service docker start
  alpine:~# rc-update add docker
  

• Useful keys:

  • Ctrl+a x: quit emulation
  • Ctrl+a h: toggle QEMU console

Hi...after reboot all the setup answerfile, interface eth0 setup ....everything gone and I have to gone thru the whole process and once again after 'Once installation is complete, power off the VM (command poweroff) and boot again without cdrom:' everything gone....need some advise here to make it persistent. Thanks

After following these instructions I will be able to use docker and access device folder at the same time?
(device folders like /storage/emulated/0/

i gave up, it seems there is no way to shared folder in qemu in termux

i even consulted it with ChatGPT
he taught me to write comments

qemu-system-x86_64
-machine q35
-m 1024
-smp cpus=2
-cpu qemu64
-drive if=pflash,format=raw,read-only,file=$PREFIX/share/qemu/edk2-x86_64-code.fd
-netdev user,id=n1,hostfwd=tcp::2222-:22 -device virtio-net,netdev=n1
-nographic
-virtfs local,path=/data/data/com.termux/files/home,mount_tag=termux,security_model=none
~/alpine/alpine.img

but can't work.

I tried running a Flask server in it and listen to port 5000 and host 0.0.0.0 which supposed to be accessible to all devices that connected to the same router. But in this case i can't even access it through my browser. Feel free to reply, any help will be appreciated.

Hi all, I installed portainer to docker

and it looks good but I can't connect from outside eg: it dosn't work 192.168.1.XX:9000 for portainer:

Do you know anyebody where is the problem? Thanks so much

EDIT: I have nonroot mobile

Perhaps the issue might be located within the QEMU starting command itself. You need to specify the hostfwd flag along with the port you intend to use. For example, use -hostfwd=tcp::9000-:9001. What this flag does is to forward TCP traffic from port 9000 on the host to port 9001 on the guest. In other words, any incoming traffic directed at port 9000 on the host will be redirected to port 9001 within the virtual machine.

Perhaps the issue might be located within the QEMU starting command itself. You need to specify the hostfwd flag along with the port you intend to use. For example, use -hostfwd=tcp::9000-:9001. What this flag does is to forward TCP traffic from port 9000 on the host to port 9001 on the guest. In other words, any incoming traffic directed at port 9000 on the host will be redirected to port 9001 within the virtual machine.

I don’t know if it is right because if I have more services with different ports?

Perhaps the issue might be located within the QEMU starting command itself. You need to specify the hostfwd flag along with the port you intend to use. For example, use -hostfwd=tcp::9000-:9001. What this flag does is to forward TCP traffic from port 9000 on the host to port 9001 on the guest. In other words, any incoming traffic directed at port 9000 on the host will be redirected to port 9001 within the virtual machine.

I don’t know if it is right because if I have more services with different ports?

I don't know if there's a better way to do this, but if you want to forward multiple ports, you could've use the hostfwd flag multiple times. This is how the command would looks like -hostfwd=tcp::8080-:80,hostfwd=tcp::9000-:8081. This is how i usually forward ports on QEMU so, hope it helps.

-hostfwd=tcp::8080-:80 -hostfwd=tcp::9000-:8081

if I use this command:
qemu-system-x86_64 -machine q35 -m 1024 -smp cpus=2 -cpu qemu64 -drive if=pflash,format=raw,read-only,file=$PREFIX/share/qemu/edk2-x86_64-code.fd -netdev user,id=n1, -hostfwd=tcp::2222-:22 -hostfwd=tcp::8080-:80 -hostfwd=tcp::9000-:8081 -device virtio-net,netdev=n1 -nographic alpine.img

I gets this message:
qemu-system-x86_64: -hostfwd=tcp::2222-:22: invalid option

@LeftandRights maybe I think it looks like that portforwarding between Termux and VM Alpine not working because If I try ping in termux to vm alpine (ping 10.0.2.15) I get icmp_seq=10 Time to live exceeded, but in VM Alpine is eth0: 10.0.2.15. What do you mean?

@LeftandRights maybe I think it looks like that portforwarding between Termux and VM Alpine not working because If I try ping in termux to vm alpine (ping 10.0.2.15) I get icmp_seq=10 Time to live exceeded, but in VM Alpine is eth0: 10.0.2.15. What do you mean?

Although it shows 10.0.2.15 on the VM, it actually forwarded to your machine IPv4 address (192.168.1.32)

@LeftandRights maybe I think it looks like that portforwarding between Termux and VM Alpine not working because If I try ping in termux to vm alpine (ping 10.0.2.15) I get icmp_seq=10 Time to live exceeded, but in VM Alpine is eth0: 10.0.2.15. What do you mean?

Although it shows 10.0.2.15 on the VM, it actually forwarded to your machine IPv4 address (192.168.1.32)

OK, if I try ping from VM Alpine to Termux so in alpine:~# ping 192.168.1.32 I get: 64 bytes from 192.168.1.32: seq=2 ttl=255 time=6.812 ms. In this case it looks ok

@LeftandRights so this mean that I can from VM Alpine to Termux but I cann't from Termux to VM Alpine?

-hostfwd=tcp::8080-:80 -hostfwd=tcp::9000-:8081

if I use this command: qemu-system-x86_64 -machine q35 -m 1024 -smp cpus=2 -cpu qemu64 -drive if=pflash,format=raw,read-only,file=$PREFIX/share/qemu/edk2-x86_64-code.fd -netdev user,id=n1, -hostfwd=tcp::2222-:22 -hostfwd=tcp::8080-:80 -hostfwd=tcp::9000-:8081 -device virtio-net,netdev=n1 -nographic alpine.img

I gets this message: qemu-system-x86_64: -hostfwd=tcp::2222-:22: invalid option

Sorry for the previous comment, the hostfwd flag should be used along with the netdev flag which turns out be something like this
qemu-system-x86_64 -machine q35 -m 1024 -smp cpus=2 -cpu qemu64 -drive if=pflash,format=raw,read-only,file=$PREFIX/share/qemu/edk2-x86_64-code.fd -netdev user,id=n1,hostfwd=tcp::2222-:22,hostfwd=tcp::8080-:80,hostfwd=tcp::9000-:8081 -device virtio-net,netdev=n1 -nographic alpine.img

Out of box ! Thankyou !!!!!!!!!!

When I launch Alpine with QEMU, I obtain this :

" Starting networking ... * lo ... [ ok ]

• docker0 ...Cannot find device "docker0"
  Cannot find device "docker0"
  Device "docker0" does not exist.
  [ ok ]
• eth0 ... [ ok ]
• Seeding random number generator ... * Seeding 256 bits and crediting
• Saving 256 bits of creditable seed for next boot
  [ ok ] "

got internet error. so what I did:
vi /etc/resolv.conf

nameserver 8.8.8.8

:wq

To avoid the connection problem that occurred with the authors of the posts above, you need to do the following:

1. In the interface setup item localhost:~# setup-interfaces, select 2 items and 3 type "yes" instead of [no]
   Do you want to do any manual network configuration? [no] yes
2. In the document that opens, paste this:
   auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 192.168.1.10
netmask 255.255.255.0
gateway 192.168.1.1
dns-nameservers 1.1.1.1
3. Check:
   cat /etc/network/interfaces
4. localhost:~# ifup eth0
5. Check this file:
   cat /etc/resolve.conf
6. If there is no such thing, then insert:
   echo "nameserver 192.168.1.1 nameserver 1.1.1.1" > /etc/resolv.conf
7. localhost:~# /etc/init.d/networking restart
8. if there are no errors, everything is ok

echo "nameserver 192.168.1.1
nameserver 1.1.1.1" > /etc/resolv.conf

This works

Hello! 👋

I forked @egandro's qemu-docker-arm (great work!), did some refactoring to work with the latest version of Alpine (3.19) and added to the README @schnatterer's idea to connect and use docker in your terminal using ssh! Creating a great experience to use docker without needing root! 😄

repo: https://github.com/AntonyZ89/docker-qemu-arm

using docker compose to up my postgresql + redis:

Screen_Recording_20240118_144445_Termux-ezgif.com-crop-video.mp4

Thank you good sir !

i have no internet why?

localhost:# ifup eth0 udhcpc: started, v1.31.1 udhcpc: sending discover udhcpc: sending select for 10.0.2.15 udhcpc: lease of 10.0.2.15 obtained, lease time 86400 localhost:# wget https://gist.githubusercontent.com/oofnikj/e79aef095cd08756f7f 26ed244355d62/raw/answerfile wget: bad address 'gist.githubusercontent.com' edit: This network setting work for me: localhost: # echo -e "auto lo\niface lo inet loopback\nauto eth0\niface eth0 inet dhcp" > /etc/network/interfaces localhost: # /etc/init.d/networking restart localhost:~# echo nameserver 1.1.1.1 > /etc/resolv.conf nameserver 8.8.8.8 does not work for me

Thanks for solving my problem. For me other problem is need modify /etc/apk/repositories enable community source, delete # in '#http://dl-cdn.alpinelinux.org/alpine/v3.12/community', otherwise run 'apk add docker' with error 'required by: world[docker-compose]'.

I tried running a Flask server in it and listen to port 5000 and host 0.0.0.0 which supposed to be accessible to all devices that connected to the same router. But in this case i can't even access it through my browser. Feel free to reply, any help will be appreciated.

qemu-system-x86_64 -machine q35 -m 1024 -smp cpus=2 -cpu qemu64
-drive if=pflash,format=raw,read-only=on,file=$PREFIX/share/qemu/edk2-x86_64-code.fd
-netdev user,id=n1,hostfwd=tcp::2222-:22,hostfwd=tcp::9000-:9000,hostfwd=tcp::4567-:4567,hostfwd=tcp::5344-:5344 -device virtio-net,netdev=n1
-cdrom alpine-virt-3.12.3-x86_64.iso -nographic alpine.img

like this ,portainer is working now