Zaw Zaw thezawzaw

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

First Method

Deleting the .git folder may cause problems in our git repository. If we want to delete all of our commits history, but keep the code in its current state, try this:

# Check out to a temporary branch:
git checkout --orphan TEMP_BRANCH

# Add all the files:
git add -A

Linux Kernel Resources

Kernel

Compiling a Kernel

Kernel Module Compilation

git clone https://android.googlesource.com/kernel/goldfish/ -b android-goldfish-3.18
git clone https://android.googlesource.com/platform/prebuilts/gcc/linux-x86/x86/x86_64-linux-android-4.9
cd goldfish
export CROSS_COMPILE=x86_64-linux-android-
export ARCH=x86_64
export PATH=$PATH:/path/to/x86_64-linux-android-4.9/bin
make x86_64_ranchu_defconfig
make menuconfig  # enable overlayfs and namespaces support here
make -j8

One liner for deleting images from a v2 docker registry

Just plug in your own values for registry and repo/image name.

registry='localhost:5000'
name='my-image'
curl -v -sSL -X DELETE "http://${registry}/v2/${name}/manifests/$(
    curl -sSL -I \
        -H "Accept: application/vnd.docker.distribution.manifest.v2+json" \

init.rc changes

init.rc changes to run any script Can be used to start any android application, service

on property:dev.bootcomplete=1
    exec - system system -- /system/bin/sh <custom script path>
    # exec - system system -- /system/bin/sh /data/local/bootscript/testservice.sh

Script can contains applications start, stop commands

Since Chrome apps are now being deprecated. Download postman from https://dl.pstmn.io/download/latest/linux

Although I highly recommend using a snap

sudo snap install postman

Installing Postman

tar -xzf Postman-linux-x64-5.3.2.tar.gz

	#!/bin/sh

	# SPDX-FileCopyrightText: 2017-2024 SanderTheDragon <[email protected]>
	#
	# SPDX-License-Identifier: MIT

	arch=$(dpkg --print-architecture)
	echo "Detected architecture: $arch"

	case "$arch" in

	# Android fstab file.
	#<src> <mnt_point> <type> <mnt_flags and options> <fs_mgr_flags>
	# The filesystem that contains the filesystem checker binary (typically /system) cannot
	# specify MF_CHECK, and must come before any filesystems that do specify MF_CHECK
	/dev/block/platform/soc.0/f9824900.sdhci/by-name/system /system ext4 ro,barrier=1,inode_readahead_blks=8 wait,verify=/dev/block/platform/soc.0/f9824900.sdhci/by-name/metadata
	/dev/block/platform/soc.0/f9824900.sdhci/by-name/vendor /vendor ext4 ro,barrier=1,inode_readahead_blks=8 wait,verify=/dev/block/platform/soc.0/f9824900.sdhci/by-name/metadata
	/dev/block/platform/soc.0/f9824900.sdhci/by-name/userdata /data ext4 noatime,nosuid,nodev,barrier=1,data=ordered,nomblk_io_submit,noauto_da_alloc,errors=panic,inode_readahead_blks=8 wait,check,forcefdeorfbe=/dev/block/platform/soc.0/f9824900.sdhci/by-name/metadata
	/d

	curl -s https://swupdate.openvpn.net/repos/repo-public.gpg \| apt-key add -
	echo "deb http://build.openvpn.net/debian/openvpn/stable xenial main" > /etc/apt/sources.list.d/openvpn-aptrepo.list
	apt update
	apt install -y openvpn