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Added custom truststore setup in entrypoint #289

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Merged
merged 1 commit into from
Oct 16, 2025
Merged

Added custom truststore setup in entrypoint #289

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23 changes: 23 additions & 0 deletions docker-entrypoint.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -86,6 +86,28 @@ setup() {
done
}

setupCertificates() {
# Add custom certificates to store
# Changing the original files requires write permissions, which is not possible
# in a container with read-only filesystem and/or non-root container.
if [ -d /certificates ] && [ "$(ls -A /certificates)" ]; then
DEFAULTTRUSTSTORE="$JAVA_HOME"/lib/security/cacerts

# Import default keystore into custom keystore
keytool -importkeystore -destkeystore "/tmp/custom.keystore" -srckeystore "${DEFAULTTRUSTSTORE}" -srcstorepass changeit -deststorepass changeit -noprompt
# Import the additional certificate into JVM truststore if it doesn't exist
for i in /certificates/*crt; do
if [ ! -f "$i" ]; then
continue
fi
if ! keytool -list -keystore /tmp/custom.keystore -alias "$(basename "$i" .crt)" -storepass changeit > /dev/null; then
keytool -import -noprompt -alias "$(basename "$i" .crt)" -file "$i" -keystore "/tmp/custom.keystore" -storepass changeit
fi
done
export JAVA_TOOL_OPTIONS="${JAVA_TOOL_OPTIONS} -Djavax.net.ssl.trustStore=/tmp/custom.keystore -Djavax.net.ssl.trustStorePassword=changeit"
fi
}

graylog() {

exec "${JAVA_HOME}/bin/java" \
Expand All @@ -101,6 +123,7 @@ graylog() {

run() {
setup
setupCertificates

# if being called without an argument assume "server" for backwards compatibility
if [ $# = 0 ]; then
Expand Down