Guillaume B.B. Van Hemmen
503ef5c8df
Standardize the environment variable naming for consistency across documentation and scripts. Updated all references in README.md and build.sh, ensuring functionality remains intact.
101 lines
3.8 KiB
Bash
101 lines
3.8 KiB
Bash
#!/bin/sh
|
||
# BusyBox/dash-friendly: no “pipefail”, no “[[ … ]]”, no “+=”
|
||
|
||
set -eu # BusyBox ash does not support “pipefail”
|
||
|
||
###############################################################################
|
||
# Mandatory variables – abort if not provided
|
||
###############################################################################
|
||
for var in KANIKO_CONTEXT GIT_REF_NAME GIT_USERNAME GIT_PASSWORD; do
|
||
eval [ -z \"\${$var:-}\" ] && {
|
||
echo "Error: $var environment variable is required but not set." >&2
|
||
exit 1
|
||
}
|
||
done
|
||
|
||
###############################################################################
|
||
# Optional / defaulted variables
|
||
###############################################################################
|
||
REGISTRY_HOST="${REGISTRY_HOST:-git.van-hemmen.com}"
|
||
REGISTRY_USER="${REGISTRY_USER:-}"
|
||
REGISTRY_PASS="${REGISTRY_PASS:-}"
|
||
|
||
KANIKO_DESTINATION="${KANIKO_DESTINATION:-}" # optional
|
||
KANIKO_VERBOSITY="${KANIKO_VERBOSITY:-info}"
|
||
KANIKO_DOCKERFILE="${KANIKO_DOCKERFILE:-./Dockerfile}"
|
||
|
||
###############################################################################
|
||
# Handle registry authentication (only if credentials are present)
|
||
###############################################################################
|
||
AUTH_ENABLED=false
|
||
if [ -n "${REGISTRY_USER}" ] && [ -n "${REGISTRY_PASS}" ]; then
|
||
echo "Registry credentials supplied – configuring authentication for ${REGISTRY_HOST}"
|
||
mkdir -p /kaniko/.docker
|
||
cat > /kaniko/.docker/config.json <<EOF
|
||
{
|
||
"auths": {
|
||
"${REGISTRY_HOST}": {
|
||
"username": "${REGISTRY_USER}",
|
||
"password": "${REGISTRY_PASS}"
|
||
}
|
||
}
|
||
}
|
||
EOF
|
||
AUTH_ENABLED=true
|
||
else
|
||
echo "Registry credentials not supplied – skipping authentication."
|
||
fi
|
||
|
||
###############################################################################
|
||
# Decide between --destination [...] or --no-push
|
||
###############################################################################
|
||
DEST_FLAGS=""
|
||
|
||
if $AUTH_ENABLED && [ -n "${KANIKO_DESTINATION## }" ]; then
|
||
echo "Building list of --destination flags"
|
||
old_ifs="$IFS"; IFS=','
|
||
for raw in $KANIKO_DESTINATION; do
|
||
raw=$(echo "$raw" | xargs) # trim
|
||
expanded=$(eval echo "$raw") # env-var expansion if any
|
||
[ -n "$expanded" ] && DEST_FLAGS="$DEST_FLAGS --destination=$expanded"
|
||
done
|
||
IFS="$old_ifs"
|
||
echo "Image(s) will be pushed to the registry."
|
||
else
|
||
DEST_FLAGS="--no-push"
|
||
$AUTH_ENABLED || echo "Registry credentials are missing – image(s) will not be pushed."
|
||
[ -n "${KANIKO_DESTINATION## }" ] || echo "KANIKO_DESTINATION not provided – using --no-push."
|
||
fi
|
||
|
||
echo "Kaniko will be called with:${DEST_FLAGS}"
|
||
|
||
###############################################################################
|
||
# resume what will be done
|
||
###############################################################################
|
||
echo "Environment Variables:"
|
||
echo "KANIKO_CONTEXT=${KANIKO_CONTEXT}"
|
||
echo "GIT_REF_NAME=${GIT_REF_NAME}"
|
||
echo "GIT_USERNAME=${GIT_USERNAME}"
|
||
echo "GIT_PASSWORD=$(echo "${GIT_PASSWORD}" | sed 's/\(^..\).*\(..$\)/\1...\2/')"
|
||
echo "REGISTRY_HOST=${REGISTRY_HOST}"
|
||
echo "REGISTRY_USER=${REGISTRY_USER}"
|
||
[ -n "${REGISTRY_PASS}" ] && echo "REGISTRY_PASS=$(echo "${REGISTRY_PASS}" | sed 's/\(^..\).*\(..$\)/\1...\2/')"
|
||
echo "KANIKO_DESTINATION=${KANIKO_DESTINATION}"
|
||
echo "KANIKO_VERBOSITY=${KANIKO_VERBOSITY}"
|
||
echo "KANIKO_DOCKERFILE=${KANIKO_DOCKERFILE}"
|
||
echo ""
|
||
if [ "${DEST_FLAGS}" = "--no-push" ]; then
|
||
echo "Action: Build only (no push)"
|
||
else
|
||
echo "Action: Build and push"
|
||
fi
|
||
echo ""
|
||
|
||
###############################################################################
|
||
# Invoke Kaniko
|
||
###############################################################################
|
||
exec /kaniko/executor \
|
||
--verbosity="${KANIKO_VERBOSITY}" \
|
||
--context="${KANIKO_CONTEXT}#${GIT_REF_NAME}" \
|
||
--dockerfile="${KANIKO_DOCKERFILE}" \
|
||
$DEST_FLAGS
|