When I check my docker image with Dockle, I get a FATAL error:
FATAL - CIS-DI-0010: Do not store credential in environment variables/files * Suspicious ENV key found : NGINX_GPGKEY on /bin/sh -c set -x && addgroup --system --gid 101 nginx && adduser --system --disabled-login --ingroup nginx --no-create-home --home /nonexistent --gecos "nginx user" --shell /bin/false --uid 101 nginx && apt-get update && apt-get install --no-install-recommends --no-install-suggests -y gnupg1 ca-certificates && NGINX_GPGKEY=573BFD6B3D8FBC641079A6ABABF5BD827BD9BF62; found=''; for server in hkp://keyserver.ubuntu.com:80 pgp.mit.edu ; do echo "Fetching GPG key $NGINX_GPGKEY from $server"; apt-key adv --keyserver "$server" --keyserver-options timeout=10 --recv-keys "$NGINX_GPGKEY" && found=yes && break; done; test -z "$found" && echo >&2 "error: failed to fetch GPG key $NGINX_GPGKEY" && exit 1; apt-get remove --purge --auto-remove -y gnupg1 && rm -rf /var/lib/apt/lists/* && dpkgArch="$(dpkg --print-architecture)" && nginxPackages=" nginx=${NGINX_VERSION}-${PKG_RELEASE} nginx-module-xslt=${NGINX_VERSION}-${PKG_RELEASE} nginx-module-geoip=${NGINX_VERSION}-${PKG_RELEASE} nginx-module-image-filter=${NGINX_VERSION}-${PKG_RELEASE} nginx-module-njs=${NGINX_VERSION}+${NJS_VERSION}-${PKG_RELEASE} " && case "$dpkgArch" in amd64|arm64) echo "deb https://nginx.org/packages/mainline/debian/ bullseye nginx" >> /etc/apt/sources.list.d/nginx.list && apt-get update ;; ) echo "deb-src https://nginx.org/packages/mainline/debian/ bullseye nginx" >> /etc/apt/sources.list.d/nginx.list && tempDir="$(mktemp -d)" && chmod 777 "$tempDir" && savedAptMark="$(apt-mark showmanual)" && apt-get update && apt-get build-dep -y $nginxPackages && ( cd "$tempDir" && DEB_BUILD_OPTIONS="nocheck parallel=$(nproc)" apt-get source --compile $nginxPackages ) && apt-mark showmanual | xargs apt-mark auto > /dev/null && { [ -z "$savedAptMark" ] || apt-mark manual $savedAptMark; } && ls -lAFh "$tempDir" && ( cd "$tempDir" && dpkg-scanpackages . > Packages ) && grep '^Package: ' "$tempDir/Packages" && echo "deb [ trusted=yes ] file://$tempDir ./" > /etc/apt/sources.list.d/temp.list && apt-get -o Acquire::GzipIndexes=false update ;; esac && apt-get install --no-install-recommends --no-install-suggests -y $nginxPackages gettext-base curl && apt-get remove --purge --auto-remove -y && rm -rf /var/lib/apt/lists/ /etc/apt/sources.list.d/nginx.list && if [ -n "$tempDir" ]; then apt-get purge -y --auto-remove && rm -rf "$tempDir" /etc/apt/sources.list.d/temp.list; fi && ln -sf /dev/stdout /var/log/nginx/access.log && ln -sf /dev/stderr /var/log/nginx/error.log && mkdir /docker-entrypoint.d (You can suppress it with --accept-key)
And,
Here is my Dockerfile:
FROM nginx:latest
WORKDIR /
RUN apt-get update && apt-get install -y \
gcc \
libfcgi-dev \
spawn-fcgi \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/*
RUN chmod 777 /var/cache/nginx/ /var/run/
COPY server/nginx/nginx.conf /etc/nginx/
COPY server/hello.c /etc/nginx/
COPY server/span-fcgi.sh /etc/nginx/
RUN chmod +x /etc/nginx/span-fcgi.sh \
&& gcc -o /etc/nginx/hello.fcgi /etc/nginx/hello.c -lpthread -lfcgi \
&& usermod -aG root,gnats,daemon,disk,sudo nginx
EXPOSE 81
USER nginx
CMD ["/etc/nginx/span-fcgi.sh"]
The script "span-fcgi.sh" contains
#!/bin/bash
spawn-fcgi -a 127.0.0.1 -p 8080 -f /etc/nginx/hello.fcgi -F 1
nginx -g 'daemon off;
Please, tell what is going in my Dockerfile, that makes the Dockle to show error above? How solve the problem and silence Dockle?
