Dockerfile

FROM quay.io/keycloak/keycloak:25.0.5 as builder

# Enable health and metrics support
ENV KC_HEALTH_ENABLED=true
ENV KC_METRICS_ENABLED=true

# Configure a database vendor
ENV KC_DB=postgres

WORKDIR /opt/keycloak
# for demonstration purposes only, please make sure to use proper certificates in production instead
RUN keytool -genkeypair -storepass password -storetype PKCS12 -keyalg RSA -keysize 2048 -dname "CN=server" -alias server -ext "SAN:c=DNS:localhost,IP:127.0.0.1" -keystore conf/server.keystore
RUN /opt/keycloak/bin/kc.sh build

FROM quay.io/keycloak/keycloak:25.0.5

COPY --from=builder /opt/keycloak/ /opt/keycloak/

ENV KEYCLOAK_ADMIN=admin \
    KEYCLOAK_ADMIN_PASSWORD=admin \
    KC_HOSTNAME=localhost

ENTRYPOINT ["/opt/keycloak/bin/kc.sh", "start-dev", "--", "-spi-theme-static-max-age=-1", "--spi-theme-cache-themes=false", "--spi-theme-cache-templates=false"]