[LTP] [PATCH v2 1/2] Add simple Containerfile

[Richard Palethorpe]

This adds a regular container (or Docker) file which builds LTP from
source. This is initially intended for testing the LTP itself.

The resulting container has just the LTP installation and runtime
dependencies. However it is still quite large, probably due to debug
symbols.

The container can be built with a command like:

podman build -t tumbleweed/ltp \
       --build-arg PREFIX=registry.opensuse.org/opensuse/ \
       --build-arg DISTRO_NAME=tumbleweed \
       --build-arg DISTRO_RELEASE=20230925 .

Or just

podman build .

which will create an Alpine container.

It contains Kirk in /opt/kirk. So

cd /opt/kirk && ./kirk -f ltp -r syscalls

will run some tests.

Note a much smaller container can be found at:
https://registry.opensuse.org/cgi-bin/cooverview?srch_term=project%3D%5Ebenchmark+container%3D.*
This is created with SUSE's build system which does not use container files

Signed-off-by: Richard Palethorpe <rpalethorpe@suse.com>
Cc: Petr Vorel <pvorel@suse.cz>
Cc: Marius Kittler <mkittler@suse.de>
---

V2:

* Added some docs. I didn't say too much because I think we are likely
  to invalidate all of this info as we start testing in containers.

 .dockerignore            |  1 +
 Containerfile            | 32 ++++++++++++++++++++++++++++++++
 README.md                | 31 +++++++++++++++++++++++++++++++
 ci/alpine-runtime.sh     | 16 ++++++++++++++++
 ci/tumbleweed-runtime.sh | 13 +++++++++++++
 5 files changed, 93 insertions(+)
 create mode 100644 .dockerignore
 create mode 100644 Containerfile
 create mode 100755 ci/alpine-runtime.sh
 create mode 100755 ci/tumbleweed-runtime.sh

diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 000000000..bbcd7072f
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1 @@
+Containerfile
diff --git a/Containerfile b/Containerfile
new file mode 100644
index 000000000..2f8192c3b
--- /dev/null
+++ b/Containerfile
@@ -0,0 +1,32 @@
+ARG PREFIX=docker.io/
+ARG DISTRO_NAME=alpine
+ARG DISTRO_RELEASE=3.18
+
+FROM $PREFIX$DISTRO_NAME:$DISTRO_RELEASE AS build
+ARG LTPROOT=/opt/ltp
+ARG DISTRO_NAME=alpine
+ARG DISTRO_RELEASE=3.18
+
+RUN mkdir /build
+WORKDIR /build
+COPY . /build
+RUN ./ci/${DISTRO_NAME}.sh
+RUN git clean -fdX
+RUN ./build.sh -p $LTPROOT -i
+
+FROM $PREFIX$DISTRO_NAME:$DISTRO_RELEASE
+ARG LTPROOT=/opt/ltp
+ARG KIRKROOT=/opt/kirk
+ARG DISTRO_NAME=alpine
+
+COPY --from=build /build/ci/${DISTRO_NAME}-runtime.sh $LTPROOT/runtime-deps.sh
+RUN $LTPROOT/runtime-deps.sh
+
+COPY --from=build $LTPROOT $LTPROOT
+ENV LTPROOT=$LTPROOT
+ENV PATH=$LTPROOT/testcases/bin:$LTPROOT/bin:$PATH
+
+RUN mkdir -p $KIRKROOT
+COPY --from=build /build/tools/kirk $KIRKROOT
+
+USER ltp
diff --git a/README.md b/README.md
index a0813b0a1..fa9559398 100644
--- a/README.md
+++ b/README.md
@@ -184,6 +184,37 @@ Network tests
 Network tests require certain setup, described in `testcases/network/README.md`
 (online at https://github.com/linux-test-project/ltp/tree/master/testcases/network).
 
+Containers
+----------
+
+*Presently running the LTP inside a container is not a shortcut. It
+will make things much harder for you.*
+
+There is a Containerfile which can be used with Docker or
+Podman. Currently it can build Alpine and OpenSUSE images.
+
+The container can be built with a command like:
+
+```
+$ podman build -t tumbleweed/ltp \
+       --build-arg PREFIX=registry.opensuse.org/opensuse/ \
+       --build-arg DISTRO_NAME=tumbleweed \
+       --build-arg DISTRO_RELEASE=20230925 .
+```
+
+Or just `podman build .` which will create an Alpine container.
+
+It contains Kirk in /opt/kirk. So the following will run some tests.
+
+```
+$ podman run -it --rm tumbleweed/ltp:latest
+$ cd /opt/kirk && ./kirk -f ltp -r syscalls
+```
+
+SUSE also publishes a
+[smaller LTP container](https://registry.opensuse.org/cgi-bin/cooverview?srch_term=project%3D%5Ebenchmark+container%3D.*)
+that is not based on the Containerfile.
+
 Developers corner
 =================
 
diff --git a/ci/alpine-runtime.sh b/ci/alpine-runtime.sh
new file mode 100755
index 000000000..e4941f329
--- /dev/null
+++ b/ci/alpine-runtime.sh
@@ -0,0 +1,16 @@
+#!/bin/sh -eux
+
+apk add \
+        acl \
+        keyutils \
+        libaio \
+        libacl \
+        libcap \
+        libselinux \
+        libsepol \
+        libtirpc \
+        numactl \
+        openssl \
+        py3-msgpack
+
+adduser -D -g "Unprivileged LTP user" ltp
diff --git a/ci/tumbleweed-runtime.sh b/ci/tumbleweed-runtime.sh
new file mode 100755
index 000000000..5207988e7
--- /dev/null
+++ b/ci/tumbleweed-runtime.sh
@@ -0,0 +1,13 @@
+#!/bin/sh -eux
+
+zyp="zypper --non-interactive install --force-resolution --no-recommends"
+
+$zyp \
+	iproute2 \
+	keyutils \
+	libaio1 \
+	libmnl0 \
+	libnuma1 \
+	libtirpc3
+
+useradd ltp
-- 
2.40.1