diff --git a/.ci/travis/docker_image/before_install.sh b/.ci/travis/docker_image/before_install.sh
deleted file mode 100755
index 36c02ec02546..000000000000
--- a/.ci/travis/docker_image/before_install.sh
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/usr/bin/env bash
-###########################################################################
-#    before_install.sh
-#    ---------------------
-#    Date                 : March 2019
-#    Copyright            : (C) 2019 by Denis Rouzaud
-#    Email                : denis@opengis.ch
-###########################################################################
-#                                                                         #
-#   This program is free software; you can redistribute it and/or modify  #
-#   it under the terms of the GNU General Public License as published by  #
-#   the Free Software Foundation; either version 2 of the License, or     #
-#   (at your option) any later version.                                   #
-#                                                                         #
-###########################################################################
diff --git a/.ci/travis/docker_image/before_script.sh b/.ci/travis/docker_image/before_script.sh
deleted file mode 100755
index 811844baa78c..000000000000
--- a/.ci/travis/docker_image/before_script.sh
+++ /dev/null
@@ -1,39 +0,0 @@
-#!/usr/bin/env bash
-###########################################################################
-#    before_install.sh
-#    ---------------------
-#    Date                 : March 2019
-#    Copyright            : (C) 2019 by Denis Rouzaud
-#    Email                : denis@opengis.ch
-###########################################################################
-#                                                                         #
-#   This program is free software; you can redistribute it and/or modify  #
-#   it under the terms of the GNU General Public License as published by  #
-#   the Free Software Foundation; either version 2 of the License, or     #
-#   (at your option) any later version.                                   #
-#                                                                         #
-###########################################################################
-
-
-set -e
-
-.ci/travis/scripts/echo_travis_var.sh
-
-pushd .docker
-
-
-
-echo "travis_fold:start:docker_build"
-echo "${bold}Docker build deps${endbold}"
-docker --version
-
-docker pull "qgis/qgis3-build-deps:${DOCKER_TAG}" || true
-docker build --cache-from "qgis/qgis3-build-deps:${DOCKER_TAG}" -t "qgis/qgis3-build-deps:${DOCKER_TAG}" -f ${DOCKER_BUILD_DEPS_FILE} .
-echo "push to qgis/qgis3-build-deps:${DOCKER_TAG}"
-docker login -u="$DOCKER_USERNAME" -p="$DOCKER_PASSWORD"
-docker push "qgis/qgis3-build-deps:${DOCKER_TAG}"
-
-echo "travis_fold:end:docker_build"
-
-
-popd
diff --git a/.ci/travis/docker_image/install.sh b/.ci/travis/docker_image/install.sh
deleted file mode 100755
index 809a773fce43..000000000000
--- a/.ci/travis/docker_image/install.sh
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/usr/bin/env bash
-###########################################################################
-#    before_install.sh
-#    ---------------------
-#    Date                 : March 2019
-#    Copyright            : (C) 2019 by Denis Rouzaud
-#    Email                : denis@opengis.ch
-###########################################################################
-#                                                                         #
-#   This program is free software; you can redistribute it and/or modify  #
-#   it under the terms of the GNU General Public License as published by  #
-#   the Free Software Foundation; either version 2 of the License, or     #
-#   (at your option) any later version.                                   #
-#                                                                         #
-###########################################################################
-
-
diff --git a/.ci/travis/docker_image/script.sh b/.ci/travis/docker_image/script.sh
deleted file mode 100755
index e234920de1e0..000000000000
--- a/.ci/travis/docker_image/script.sh
+++ /dev/null
@@ -1,87 +0,0 @@
-#!/usr/bin/env bash
-###########################################################################
-#    before_install.sh
-#    ---------------------
-#    Date                 : March 2019
-#    Copyright            : (C) 2019 by Denis Rouzaud
-#    Email                : denis@opengis.ch
-###########################################################################
-#                                                                         #
-#   This program is free software; you can redistribute it and/or modify  #
-#   it under the terms of the GNU General Public License as published by  #
-#   the Free Software Foundation; either version 2 of the License, or     #
-#   (at your option) any later version.                                   #
-#                                                                         #
-###########################################################################
-
-
-set -e
-
-# test if ccache dir exists (coming from Travis cache)
-[[ -d ${CCACHE_DIR} ]] && echo "cache directory (${CCACHE_DIR}) exists" || mkdir -p "${CCACHE_DIR}"
-
-# copy ccache dir within QGIS source so it can be accessed from docker
-cp -r ${CCACHE_DIR}/. ${TRAVIS_BUILD_DIR}/.ccache_image_build
-
-echo "Cache directory size: "$(du -h --max-depth=0 ${TRAVIS_BUILD_DIR}/.ccache_image_build)
-
-# calculate timeouts
-CURRENT_TIME=$(date +%s)
-TIMEOUT=$((( TRAVIS_AVAILABLE_TIME - TRAVIS_UPLOAD_TIME ) * 60 - CURRENT_TIME + TRAVIS_TIMESTAMP))
-#TIMEOUT=$(( TIMEOUT < 300 ? 300 : TIMEOUT ))
-echo "Timeout: ${TIMEOUT}s"
-
-# building docker images
-pushd "${TRAVIS_BUILD_DIR}/.docker"
-echo "${bold}Building QGIS Docker image '${DOCKER_TAG}'...${endbold}"
-DOCKER_BUILD_ARGS="--build-arg DOCKER_TAG=${DOCKER_TAG} \
-                   --build-arg BUILD_TIMEOUT=${TIMEOUT} \
-                   --build-arg CC --build-arg CXX"
-docker build ${DOCKER_BUILD_ARGS} \
-             --cache-from "qgis/qgis:${DOCKER_TAG}" \
-             -t "qgis/qgis:BUILDER" \
-             -f qgis.dockerfile ..
-
-docker run --name qgis_container qgis/qgis:BUILDER /bin/true
-
-echo "Copy build cache from Docker container to Travis cache directory"
-rm -rf "${CCACHE_DIR:?}/"*
-mkdir -p ${CCACHE_DIR}
-docker cp qgis_container:/QGIS/.ccache_image_build/. ${CCACHE_DIR}
-
-docker cp qgis_container:/QGIS/build_exit_value ${HOME}/build_exit_value
-
-if [[ $(cat ${HOME}/build_exit_value) == "TIMEOUT" ]]; then
-  echo "Build timeout, not pushing image or triggering PyQGIS docs"
-  exit 1
-else
-  echo "${bold}Finalize image…${endbold}"
-  # enable experimental features in Docker to squash
-  echo '{ "experimental": true}' | sudo tee /etc/docker/daemon.json
-  sudo service docker restart
-  docker build ${DOCKER_BUILD_ARGS} \
-             --cache-from "qgis/qgis:BUILDER" \
-             --squash \
-             -t "qgis/qgis:${DOCKER_TAG}" \
-             -f qgis.dockerfile ..
-
-  echo "${bold}Pushing image to docker hub…${endbold}"
-  docker login -u="$DOCKER_USERNAME" -p="$DOCKER_PASSWORD"
-  docker push "qgis/qgis:${DOCKER_TAG}"
-
-  echo "Trigger build of PyQGIS Documentation…"
-  if [[ ${TRIGGER_PYQGIS_DOC} =~ ^TRUE$ ]]; then
-    body='{
-      "ref": "master",
-      "inputs": {"qgis_branch": "__QGIS_VERSION_BRANCH__"}
-    }'
-    body=$(sed "s/__QGIS_VERSION_BRANCH__/${TRAVIS_BRANCH}/;" <<< $body)
-    curl -X POST \
-      -H "Accept: application/vnd.github.v3+json" \
-      -H "Authorization: token ${GH_TOKEN}" \
-      https://api.github.com/repos/qgis/pyqgis/actions/workflows/2246440/dispatches \
-      -d "${body}"
-  else
-    echo "skipped from configuration"
-  fi
-fi
diff --git a/.travis.yml b/.travis.yml
index 91575a97a257..d2d65662aecf 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,4 @@
-language: python # This lets us use newer python versions from virtualenv
+language: python
 python: "3.7"
 compiler: clang
 dist: bionic
@@ -8,8 +8,6 @@ cache:
   pip: true
   directories:
     - ${HOME}/.ccache_testing
-    - ${HOME}/.ccache_docker_build_focal
-    - ${HOME}/.ccache_docker_build_bionic
   timeout: 1000
 if: NOT branch =~ /^(cherry-pick-)?backport-\d+-/ AND NOT branch =~ /-patch-\d+$/
 
@@ -49,64 +47,6 @@ matrix:
         # Label ID can be found here https://api.github.com/repos/qgis/QGIS/labels
         - RUN_FLAKY_TESTS=$(.ci/travis/scripts/pr_has_label.py $TRAVIS_PULL_REQUEST 1271248184)
 
-
-##########################################################
-#
-#  DOCKER IMAGE BUILD JOBS ON CRON OR TAG
-#
-##########################################################
-
-
-      ##########################################################
-      # BIONIC DOCKER BUILD ON CRON OR TAG
-      ##########################################################
-    - os: linux
-      name: bionic docker build 🐳
-      if: repo = qgis/QGIS AND (tag IS PRESENT OR type = cron)
-      services: docker
-      sudo: required # required to restart Docker Daemon with experimental features
-      env:
-        - TRAVIS_CONFIG=docker_image
-        - CCACHE_DIR=${HOME}/.ccache_docker_build_bionic
-        - TRIGGER_PYQGIS_DOC=FALSE
-        - DOCKER_TAG=$( echo $TRAVIS_BRANCH | sed 's/master/latest/' )
-        - DOCKER_BUILD_DEPS_FILE=qgis3-build-deps.dockerfile
-        - CC=/usr/lib/ccache/clang
-        - CXX=/usr/lib/ccache/clang++
-
-      ##########################################################
-      # FOCAL DOCKER BUILD ON CRON OR TAG
-      ##########################################################
-    - os: linux
-      name: focal docker build 🔭
-      if: repo = qgis/QGIS AND (tag IS PRESENT OR type = cron)
-      services: docker
-      sudo: required # required to restart Docker Daemon with experimental features
-      env:
-        - TRAVIS_CONFIG=docker_image
-        - CCACHE_DIR=${HOME}/.ccache_docker_build_focal
-        - TRIGGER_PYQGIS_DOC=TRUE
-        - DOCKER_TAG="$( echo $TRAVIS_BRANCH | sed 's/master/latest/' )_focal"
-        - DOCKER_BUILD_DEPS_FILE=qgis3-build-deps-focal.dockerfile
-        - CC=/usr/lib/ccache/gcc
-        - CXX=/usr/lib/ccache/g++ # Building SIP binding freezes with Clang in Docker, maybe a SIP issue, maybe not
-
-
-
-    # OSX based build with QT4 and Python 2
-#    - os: osx
-#      osx_image: xcode8.3 # MacOS 10.12: Sierra
-#      cache:
-#        pip: true
-#        directories:
-#          - $HOME/.ccache
-#      env:
-#        - TRAVIS_CONFIG=macos
-#        - IGNORE_BUILD_FAILURES=YES
-#
-#  allow_failures:
-#    - os: osx
-
 git:
   depth: 120