CI: Drop Ubuntu Trusty testing

This is also End of Life.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Anthony PERARD <anthony.perard@vates.tech>
Release-Acked-By: Oleksii Kurochko <oleksii.kurochko@gmail.com>

automation/build/ubuntu/trusty.dockerfile

@@ -1,51 +0,0 @@
-# syntax=docker/dockerfile:1
-FROM --platform=linux/amd64 ubuntu:14.04
-LABEL maintainer.name="The Xen Project" \
-      maintainer.email="xen-devel@lists.xenproject.org"
-
-ENV DEBIAN_FRONTEND=noninteractive
-ENV USER root
-
-RUN mkdir /build
-WORKDIR /build
-
-# build depends
-RUN apt-get update && \
-    apt-get --quiet --yes install \
-        build-essential \
-        zlib1g-dev \
-        libncurses5-dev \
-        python-dev \
-        python3-dev \
-        uuid-dev \
-        libyajl-dev \
-        libaio-dev \
-        libglib2.0-dev \
-        clang \
-        libpixman-1-dev \
-        pkg-config \
-        flex \
-        bison \
-        acpica-tools \
-        bin86 \
-        bcc \
-        liblzma-dev \
-        libnl-3-dev \
-        ocaml-nox \
-        libfindlib-ocaml-dev \
-        markdown \
-        transfig \
-        pandoc \
-        checkpolicy \
-        wget \
-        git \
-        nasm \
-        && \
-        apt-get autoremove -y && \
-        apt-get clean && \
-        rm -rf /var/lib/apt/lists* /tmp/* /var/tmp/*
-
-# Remove expired certificate that Let's Encrypt certificates used to relie on.
-# (Not needed anymore)
-RUN sed -i 's#mozilla/DST_Root_CA_X3\.crt#!\0#' /etc/ca-certificates.conf && \
-    update-ca-certificates

automation/gitlab-ci/build.yaml

@@ -633,18 +633,6 @@ fedora-gcc-debug:
   variables:
     CONTAINER: fedora:29
 
-# Ubuntu Trusty's Clang is 3.4 while Xen requires 3.5
-
-ubuntu-trusty-gcc:
-  extends: .gcc-x86-64-build
-  variables:
-    CONTAINER: ubuntu:trusty
-
-ubuntu-trusty-gcc-debug:
-  extends: .gcc-x86-64-build-debug
-  variables:
-    CONTAINER: ubuntu:trusty
-
 ubuntu-xenial-clang:
   extends: .clang-x86-64-build
   variables:

automation/scripts/containerize

@@ -39,7 +39,6 @@ case "_${CONTAINER}" in
     _bookworm-arm64v8) CONTAINER="${BASE}/debian:bookworm-arm64v8" ;;
     _bookworm-cppcheck) CONTAINER="${BASE}/debian:bookworm-cppcheck" ;;
     _bionic) CONTAINER="${BASE}/ubuntu:bionic" ;;
-    _trusty) CONTAINER="${BASE}/ubuntu:trusty" ;;
     _xenial) CONTAINER="${BASE}/ubuntu:xenial" ;;
     _opensuse-leap|_leap) CONTAINER="${BASE}/suse:opensuse-leap" ;;
     _opensuse-tumbleweed|_tumbleweed) CONTAINER="${BASE}/suse:opensuse-tumbleweed" ;;