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kata-deploy: Move the containerd workarounds to their own functions

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Factoring those pieces of code to their own functions allows us to
easily re-use them when creating & cleaning up the CRI-O configuration
files, as CRI-O is also affected by the issues that are still opened.

Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
This commit is contained in:
Fabiano Fidêncio 2021-02-17 23:47:08 +01:00
parent 5013634e23
commit d1c717363d
1 changed files with 49 additions and 38 deletions
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87
tools/packaging/kata-deploy/scripts/kata-deploy.sh
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@ -66,6 +66,52 @@ function configure_cri_runtime() {
systemctl restart "$1"
}
function configure_different_shims_base() {
# Currently containerd has an assumption on the location of the shimv2 implementation
# This forces kata-deploy to create files in a well-defined location that's part of
# the PATH, pointing to the containerd-shim-kata-v2 binary in /opt/kata/bin
# Issues:
# https://github.com/containerd/containerd/issues/3073
# https://github.com/containerd/containerd/issues/5006
mkdir -p /usr/local/bin
for shim in "${shims[@]}"; do
local shim_binary="containerd-shim-kata-${shim}-v2"
local shim_file="/usr/local/bin/${shim_binary}"
local shim_backup="/usr/local/bin/${shim_binary}.bak"
if [ -f "${shim_file}" ]; then
echo "warning: ${shim_binary} already exists" >&2
if [ ! -f "${shim_backup}" ]; then
mv "${shim_file}" "${shim_backup}"
else
rm "${shim_file}"
fi
fi
cat << EOT | tee "$shim_file"
#!/bin/bash
KATA_CONF_FILE=/opt/kata/share/defaults/kata-containers/configuration-${shim}.toml /opt/kata/bin/containerd-shim-kata-v2 \$@
EOT
chmod +x "$shim_file"
done
}
function cleanup_different_shims_base() {
for shim in "${shims[@]}"; do
local shim_binary="containerd-shim-kata-${shim}-v2"
local shim_file="/usr/local/bin/${shim_binary}"
local shim_backup="/usr/local/bin/${shim_binary}.bak"
rm "${shim_file}" || true
if [ -f "${shim_backup}" ]; then
mv "$shim_backup" "$shim_file"
fi
done
}
function configure_crio() {
# Configure crio to use Kata:
echo "Add Kata Containers as a supported runtime for CRIO:"
@ -199,32 +245,10 @@ function configure_containerd() {
# Add default Kata runtime configuration
configure_containerd_runtime
#Currently containerd has an assumption on the location of the shimv2 implementation
#Until support is added (see https://github.com/containerd/containerd/issues/3073),
#create a link in /usr/local/bin/ to the v2-shim implementation in /opt/kata/bin.
mkdir -p /usr/local/bin
configure_different_shims_base
for shim in "${shims[@]}"; do
configure_containerd_runtime $shim
local shim_binary="containerd-shim-kata-${shim}-v2"
local shim_file="/usr/local/bin/${shim_binary}"
local shim_backup="/usr/local/bin/${shim_binary}.bak"
if [ -f "${shim_file}" ]; then
echo "warning: ${shim_binary} already exists" >&2
if [ ! -f "${shim_backup}" ]; then
mv "${shim_file}" "${shim_backup}"
else
rm "${shim_file}"
fi
fi
cat << EOT | tee "$shim_file"
#!/bin/bash
KATA_CONF_FILE=/opt/kata/share/defaults/kata-containers/configuration-${shim}.toml /opt/kata/bin/containerd-shim-kata-v2 \$@
EOT
chmod +x "$shim_file"
done
}
@ -244,6 +268,7 @@ function cleanup_cri_runtime() {
esac
}
function cleanup_crio() {
if [ -f "$crio_conf_file_backup" ]; then
cp "$crio_conf_file_backup" "$crio_conf_file"
@ -256,22 +281,8 @@ function cleanup_containerd() {
mv "$containerd_conf_file_backup" "$containerd_conf_file"
fi
#Currently containerd has an assumption on the location of the shimv2 implementation
#Until support is added (see https://github.com/containerd/containerd/issues/3073), we manage
# a reference to the v2-shim implementation
for shim in "${shims[@]}"; do
local shim_binary="containerd-shim-kata-${shim}-v2"
local shim_file="/usr/local/bin/${shim_binary}"
local shim_backup="/usr/local/bin/${shim_binary}.bak"
rm "${shim_file}" || true
if [ -f "${shim_backup}" ]; then
mv "$shim_backup" "$shim_file"
fi
done
cleanup_different_shims_base
}
function reset_runtime() {