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A modern Docker image for building LineageOS in Continuous Integration and Continous Deployment.

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docker-androidbuild

A modern Docker image for building LineageOS in Continuous Integration and Continous Deployment.

The main goal is simplify the original work and make it more maintainable without making too much sacrifices in terms of features.

This work is based on https://github.com/lineageos4microg/docker-lineage-cicd and hence same license applies. Kudos to LineageOS and microG development teams!

Troubleshooting

AIDL errors

If you get strange AIDL errors like ERROR: system/netd/resolv/aidl/dnsresolver/1: No API file exist, you're probably running Docker and this image on an older Debian host (e.g. Stretch).

Not sure why, but changing the host system to Ubuntu 18.04 solved the issue for me. Maybe newer Debian systems also work.

Prerequisites

Why Docker?

A fair number of dependencies is needed to build LineageOS, plus a Linux system (and a discrete knowledge of it). With Docker we give you a minimal Linux build system with all the tools and scripts already integrated, easing considerably the creation of your own LineageOS build.

Moreover Docker runs also on Microsoft Windows and Mac OS, which means that LineageOS can be built on such platforms without requiring a dual boot system or a manual set up of a Virtual Machine.

How do I install Docker?

The official Docker guides are well-written:

If your Windows or Mac system doesn't satisfy the requirements (or if you have Oracle VirtualBox installed, you can use Docker Toolbox.

Docker Toolbox is not described in this guide, but it should be very similar to the standard Docker installation.

Once you can run the hello-world image you're ready to start!

Usage

How can I build LineageOS?

This Docker image contains a great number of settings, to allow you to fully customize your LineageOS build. Here you can find all of them, with the default values between the brackets.

TL;DR - go to the Examples

Settings

Fundamental settings

The two fundamental settings are:

  • BRANCH_NAME (lineage-16.0): LineageOS branch, see the branch list here (multiple comma-separated branches can be specified)
  • DEVICE_LIST: comma-separated list of devices to build

Running a build with only these two set will create a ZIP file almost identical to the LineageOS official builds, just signed with the test keys.

Signature spoofing

There are two options for the signature spoofing patch required for microG:

  • "Original" patches
  • Restricted patches

With the "original" patch the FAKE_SIGNATURE permission can be granted to any user app: while it may seem handy, this is considered dangerous by a great number of people, as the user could accidentally give this permission to rogue apps.

A more strict option is the restricted patch, where the FAKE_SIGNATURE permission can be obtained only by privileged system apps, embedded in the ROM during the build process.

The signature spoofing patch can be optionally included with:

  • SIGNATURE_SPOOFING (no): yes to use the original patch, restricted for the restricted one, no for none of them

If in doubt, use restricted: note that packages that requires the FAKE_SIGNATURE permission must be embedded in the build by adding them in

UnifiedNLP support

If you enable signature spoofing and want to use unifiednlp from microg, the patch to support this can be enabled using:

  • UNIFIEDNLP_SUPPORT (false): true to patch in unifiednlp support

Custom Packages

  • CUSTOM_PACKAGES

Extra packages can be included in the tree by adding the corresponding manifest XML to the local_manifests volume.

Proprietary files

Some proprietary files are needed to create a LineageOS build, but they're not included in the LineageOS repo for legal reasons. You can obtain these blobs in three ways:

The third way is the easiest one and is enabled by default; if you're OK with that just move on, otherwise set INCLUDE_PROPRIETARY (true) to false and manually provide the blobs (not explained in this guide).

OTA

If you have a server and you want to enable OTA updates you have to provide the URL of your server during the build process with:

  • OTA_URL

If you don't setup a OTA server you won't be able to update the device from the updater app (but you can still update it manually with the recovery of course).

Signing

By default, builds are signed with the Android test keys. If you want to sign your builds with your own keys (highly recommended):

  • SIGN_BUILDS (false): set to true to sign the builds with the keys contained in /srv/keys; if no keys are present, a new set will be generated

Other settings

Other useful settings are:

  • CCACHE_SIZE (50G): change this if you want to give more (or less) space to ccache
  • WITH_SU (false): set to true to embed su in the build (note that, even when set to false, you can still enable root by flashing the su installable ZIP) NOTE: in lineageos 17.1 the WITH_SU flag was dropped, as it did not function properly in Android 10. The suggested replacement is Magisk https://www.xda-developers.com/lineageos-dropping-superuser-addonsu-implementation-favor-magisk-manager/
  • RELEASE_TYPE (UNOFFICIAL): change the release type of your builds
  • BUILD_OVERLAY (false): normally each build is done on the source tree, then the tree is cleaned with mka clean. If you want to be sure that each build is isolated from the others, set BUILD_OVERLAY to true (longer build time). Requires --cap-add=SYS_ADMIN.
  • LOCAL_MIRROR (false): change this to true if you want to create a local mirror of the LineageOS source (> 200 GB)
  • CRONTAB_TIME (now): instead of building immediately and exit, build at the specified time (uses standard cron format)
  • BOOT_IMG (false): copy the build boot.img into the zips folder. This is useful as you may need to flash it first if your device doesn't support custom recoveries

The full list of settings, including the less interesting ones not mentioned in this guide, can be found in the Dockerfile.

Volumes

You also have to provide Docker some volumes, where it'll store the source, the resulting builds, the cache and so on. The volumes are:

  • /srv/src, for the LineageOS sources
  • /srv/zips, for the output builds
  • /srv/logs, for the output logs
  • /srv/ccache, for the ccache
  • /srv/local_manifests, for custom manifests (optional)
  • /srv/userscripts, for the user scripts (optional)

When SIGN_BUILDS is true

  • /srv/keys, for the signing keys

When BUILD_OVERLAY is true

  • /srv/tmp, for temporary files

When LOCAL_MIRROR is true:

  • /srv/mirror, for the LineageOS mirror

Including MicroG and other package pre-builts

The microG and FDroid packages are not present in the LineageOS repositories, and must be provided through an XML in the $LMANIFEST_DIR volume.

LineageOS < 17.1

This repo contains some of the most common packages for these kind of builds for lineageOS < 17.1: to include it create an XML (the name is irrelevant, as long as it ends with .xml) in the $LMANIFEST_DIR folder with this content:

<?xml version="1.0" encoding="UTF-8"?>
<manifest>
  <project name="lineageos4microg/android_prebuilts_prebuiltapks" path="prebuilts/prebuiltapks" remote="github" revision="master" />
</manifest>

LineageOS 17.1

Some of the packages in the prebuiltapks repo are not updated for Android 10/ LineageOS 17.1.

An example of this is the MicroG apk.

<?xml version="1.0" encoding="UTF-8"?>
<manifest>
  <project name="SolidHal/android_prebuilts_prebuiltapks" path="packages/apps/prebuilt" remote="github" revision="master" />
</manifest>

Then include GmsCore and/or any other pre-built app name in the CUSTOM_PACKAGES environment variable like this:

    -e "CUSTOM_PACKAGES=GmsCore" \

Examples

Build for bacon (lineage-16.0, officially supported), test keys, no patches

docker run \
    -e "BRANCH_NAME=lineage-16.0" \
    -e "DEVICE_LIST=bacon" \
    -v "/home/user/lineage:/srv/src" \
    -v "/home/user/zips:/srv/zips" \
    -v "/home/user/logs:/srv/logs" \
    -v "/home/user/cache:/srv/ccache" \
    lineageos4microg/docker-lineage-cicd

Build for angler (lineage-15.1, officially supported), custom keys, restricted signature spoofing with integrated microG and FDroid

docker run \
    -e "BRANCH_NAME=lineage-15.1" \
    -e "DEVICE_LIST=angler" \
    -e "SIGN_BUILDS=true" \
    -e "SIGNATURE_SPOOFING=restricted" \
    -e "CUSTOM_PACKAGES=GmsCore GsfProxy FakeStore MozillaNlpBackend NominatimNlpBackend com.google.android.maps.jar FDroid FDroidPrivilegedExtension " \
    -v "/home/user/lineage:/srv/src" \
    -v "/home/user/zips:/srv/zips" \
    -v "/home/user/logs:/srv/logs" \
    -v "/home/user/cache:/srv/ccache" \
    -v "/home/user/keys:/srv/keys" \
    -v "/home/user/manifests:/srv/local_manifests" \
    lineageos4microg/docker-lineage-cicd

If there are already keys in /home/user/keys they will be used, otherwise a new set will be generated before starting the build (and will be used for every subsequent build).

The microG and FDroid packages are not present in the LineageOS repositories, and must be provided through an XML in the /home/user/manifests.

This repo contains some of the most common packages for these kind of builds: to include it create an XML (the name is irrelevant, as long as it ends with .xml) in the /home/user/manifests folder with this content:

<?xml version="1.0" encoding="UTF-8"?>
<manifest>
  <project name="lineageos4microg/android_prebuilts_prebuiltapks" path="prebuilts/prebuiltapks" remote="github" revision="master" />
</manifest>

Build for four devices on lineage-15.1 and lineage-16.0 (officially supported), custom keys, restricted signature spoofing with integrated microG and FDroid, custom OTA server

docker run \
    -e "BRANCH_NAME=lineage-15.1,lineage-16.0" \
    -e "DEVICE_LIST_LINEAGE_15_1=angler,oneplus2" \
    -e "DEVICE_LIST_LINEAGE_16_0=bacon,dumpling" \
    -e "SIGN_BUILDS=true" \
    -e "SIGNATURE_SPOOFING=restricted" \
    -e "CUSTOM_PACKAGES=GmsCore GsfProxy FakeStore MozillaNlpBackend NominatimNlpBackend com.google.android.maps.jar FDroid FDroidPrivilegedExtension " \
    -e "OTA_URL=https://api.myserver.com/" \
    -v "/home/user/lineage:/srv/src" \
    -v "/home/user/zips:/srv/zips" \
    -v "/home/user/logs:/srv/logs" \
    -v "/home/user/cache:/srv/ccache" \
    -v "/home/user/keys:/srv/keys" \
    -v "/home/user/manifests:/srv/local_manifests" \
    lineageos4microg/docker-lineage-cicd

Build for a6000 (not officially supported), custom keys, restricted signature spoofing with integrated microG and FDroid

As there is no official support for this device, we first have to include the sources in the source tree through an XML in the /home/user/manifests folder; from this thread we get the links of:

Then, with the help of lineage.dependencies from the device tree and the common tree we create an XML /home/user/manifests/a6000.xml with this content:

<?xml version="1.0" encoding="UTF-8"?>
<manifest>
  <project name="dev-harsh1998/android_device_lenovo_a6000" path="device/lenovo/a6000" remote="github" />
  <project name="dev-harsh1998/android_device_lenovo_msm8916-common" path="device/lenovo/msm8916-common" remote="github" />
  <project name="dev-harsh1998/kernel_lenovo_msm8916" path="kernel/lenovo/a6000" remote="github" />
  <project name="dev-harsh1998/proprietary-vendor_lenovo" path="vendor/lenovo" remote="github" />
  <project name="LineageOS/android_device_qcom_common" path="device/qcom/common" remote="github" />
</manifest>

We also want to include our custom packages so, like before, create an XML (for example /home/user/manifests/custom_packages.xml) with this content:

<?xml version="1.0" encoding="UTF-8"?>
<manifest>
  <project name="lineageos4microg/android_prebuilts_prebuiltapks" path="prebuilts/prebuiltapks" remote="github" revision="master" />
</manifest>

We also set INCLUDE_PROPRIETARY=false, as the proprietary blobs are already provided by the repo https://github.com/dev-harsh1998/prorietary_vendor_lenovo (so we don't have to include the TheMuppets repo).

Now we can just run the build like it was officially supported:

docker run \
    -e "BRANCH_NAME=lineage-15.1" \
    -e "DEVICE_LIST=a6000" \
    -e "SIGN_BUILDS=true" \
    -e "SIGNATURE_SPOOFING=restricted" \
    -e "CUSTOM_PACKAGES=GmsCore GsfProxy FakeStore MozillaNlpBackend NominatimNlpBackend com.google.android.maps.jar FDroid FDroidPrivilegedExtension " \
    -e "INCLUDE_PROPRIETARY=false" \
    -v "/home/user/lineage:/srv/src" \
    -v "/home/user/zips:/srv/zips" \
    -v "/home/user/logs:/srv/logs" \
    -v "/home/user/cache:/srv/ccache" \
    -v "/home/user/keys:/srv/keys" \
    -v "/home/user/manifests:/srv/local_manifests" \
    lineageos4microg/docker-lineage-cicd

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