10 files changed, 11 insertions, 0 deletions
diff --git a/tests/docker/dockerfiles/alpine.docker b/tests/docker/dockerfiles/alpine.docker
index d63a269aef..0ac46ddd91 100644
--- a/tests/docker/dockerfiles/alpine.docker
+++ b/tests/docker/dockerfiles/alpine.docker
@@ -9,6 +9,7 @@ ENV PACKAGES \
 	alsa-lib-dev \
 	bash \
 	binutils \
+	ccache \
 	coreutils \
 	curl-dev \
 	g++ \
@@ -39,6 +40,7 @@ ENV PACKAGES \
 	pulseaudio-dev \
 	python3 \
 	py3-sphinx \
+	py3-sphinx_rtd_theme \
 	shadow \
 	snappy-dev \
 	spice-dev \
diff --git a/tests/docker/dockerfiles/debian10.docker b/tests/docker/dockerfiles/debian10.docker
index d034acbd25..63cf835ec5 100644
--- a/tests/docker/dockerfiles/debian10.docker
+++ b/tests/docker/dockerfiles/debian10.docker
@@ -32,6 +32,7 @@ RUN apt update && \
         psmisc \
         python3 \
         python3-sphinx \
+        python3-sphinx-rtd-theme \
         $(apt-get -s build-dep --arch-only qemu | egrep ^Inst | fgrep '[all]' | cut -d\  -f2)
 
 ENV FEATURES docs
diff --git a/tests/docker/dockerfiles/fedora-i386-cross.docker b/tests/docker/dockerfiles/fedora-i386-cross.docker
index 966072c08e..66cdb06c19 100644
--- a/tests/docker/dockerfiles/fedora-i386-cross.docker
+++ b/tests/docker/dockerfiles/fedora-i386-cross.docker
@@ -1,6 +1,7 @@
 FROM fedora:33
 ENV PACKAGES \
     bzip2 \
+    ccache \
     diffutils \
     findutils \
     gcc \
diff --git a/tests/docker/dockerfiles/fedora-win32-cross.docker b/tests/docker/dockerfiles/fedora-win32-cross.docker
index 81b5659e9c..3733df63e9 100644
--- a/tests/docker/dockerfiles/fedora-win32-cross.docker
+++ b/tests/docker/dockerfiles/fedora-win32-cross.docker
@@ -4,6 +4,7 @@ FROM fedora:33
 ENV PACKAGES \
     bc \
     bzip2 \
+    ccache \
     diffutils \
     findutils \
     gcc \
diff --git a/tests/docker/dockerfiles/fedora-win64-cross.docker b/tests/docker/dockerfiles/fedora-win64-cross.docker
index bcb428e724..2564ce4979 100644
--- a/tests/docker/dockerfiles/fedora-win64-cross.docker
+++ b/tests/docker/dockerfiles/fedora-win64-cross.docker
@@ -4,6 +4,7 @@ FROM fedora:33
 ENV PACKAGES \
     bc \
     bzip2 \
+    ccache \
     diffutils \
     findutils \
     gcc \
diff --git a/tests/docker/dockerfiles/fedora.docker b/tests/docker/dockerfiles/fedora.docker
index 915fdc1845..d8fa16372d 100644
--- a/tests/docker/dockerfiles/fedora.docker
+++ b/tests/docker/dockerfiles/fedora.docker
@@ -92,6 +92,7 @@ ENV PACKAGES \
     python3-pillow \
     python3-pip \
     python3-sphinx \
+    python3-sphinx_rtd_theme \
     python3-virtualenv \
     rdma-core-devel \
     SDL2-devel \
diff --git a/tests/docker/dockerfiles/opensuse-leap.docker b/tests/docker/dockerfiles/opensuse-leap.docker
index 0e64893e4a..f7e1cbfbe6 100644
--- a/tests/docker/dockerfiles/opensuse-leap.docker
+++ b/tests/docker/dockerfiles/opensuse-leap.docker
@@ -5,6 +5,7 @@ ENV PACKAGES \
     bc \
     brlapi-devel \
     bzip2 \
+    ccache \
     cyrus-sasl-devel \
     gcc \
     gcc-c++ \
diff --git a/tests/docker/dockerfiles/ubuntu.docker b/tests/docker/dockerfiles/ubuntu.docker
index b5ef7a8198..98a527361c 100644
--- a/tests/docker/dockerfiles/ubuntu.docker
+++ b/tests/docker/dockerfiles/ubuntu.docker
@@ -63,6 +63,7 @@ ENV PACKAGES \
     ninja-build \
     python3-yaml \
     python3-sphinx \
+    python3-sphinx-rtd-theme \
     sparse \
     xfslibs-dev
 RUN apt-get update && \
diff --git a/tests/docker/dockerfiles/ubuntu1804.docker b/tests/docker/dockerfiles/ubuntu1804.docker
index 9b0a19ba5e..c0d3642507 100644
--- a/tests/docker/dockerfiles/ubuntu1804.docker
+++ b/tests/docker/dockerfiles/ubuntu1804.docker
@@ -48,6 +48,7 @@ ENV PACKAGES \
     make \
     python3-yaml \
     python3-sphinx \
+    python3-sphinx-rtd-theme \
     ninja-build \
     sparse \
     xfslibs-dev
diff --git a/tests/docker/dockerfiles/ubuntu2004.docker b/tests/docker/dockerfiles/ubuntu2004.docker
index 9750016e51..f1e0ebad49 100644
--- a/tests/docker/dockerfiles/ubuntu2004.docker
+++ b/tests/docker/dockerfiles/ubuntu2004.docker
@@ -58,6 +58,7 @@ ENV PACKAGES flex bison \
     python3-pil \
     python3-pip \
     python3-sphinx \
+    python3-sphinx-rtd-theme \
     python3-venv \
     python3-yaml \
     rpm2cpio \