Fix permissions on containers.conf

When running in a rootless buildah, the build user
is not allowed to read /etc/containers/containers.conf
which is causing these containers to fail.

This patch makes containers.conf world readable.

Signed-off-by: Daniel J Walsh <[email protected]>

contrib/buildahimage/stable/Dockerfile

@@ -16,7 +16,7 @@ RUN useradd build; yum -y update; yum -y reinstall shadow-utils; yum -y install
 ADD https://raw.githubusercontent.com/containers/buildah/master/contrib/buildahimage/stable/containers.conf /etc/containers/
 
 # Adjust storage.conf to enable Fuse storage.
-RUN sed -i -e 's|^#mount_program|mount_program|g' -e '/additionalimage.*/a "/var/lib/shared",' -e 's|^mountopt[[:space:]]*=.*$|mountopt = "nodev,fsync=0"|g' /etc/containers/storage.conf
+RUN chmod 644 /etc/containers/containers.conf; sed -i -e 's|^#mount_program|mount_program|g' -e '/additionalimage.*/a "/var/lib/shared",' -e 's|^mountopt[[:space:]]*=.*$|mountopt = "nodev,fsync=0"|g' /etc/containers/storage.conf
 RUN mkdir -p /var/lib/shared/overlay-images /var/lib/shared/overlay-layers; touch /var/lib/shared/overlay-images/images.lock; touch /var/lib/shared/overlay-layers/layers.lock
 
 # Set an environment variable to default to chroot isolation for RUN

contrib/buildahimage/testing/Dockerfile

@@ -18,7 +18,7 @@ RUN useradd build; yum -y update; yum -y reinstall shadow-utils; yum -y install
 ADD https://raw.githubusercontent.com/containers/buildah/master/contrib/buildahimage/stable/containers.conf /etc/containers/
 
 # Adjust storage.conf to enable Fuse storage.
-RUN sed -i -e 's|^#mount_program|mount_program|g' -e '/additionalimage.*/a "/var/lib/shared",' -e 's|^mountopt[[:space:]]*=.*$|mountopt = "nodev,fsync=0"|g' /etc/containers/storage.conf
+RUN chmod 644 /etc/containers/containers.conf; sed -i -e 's|^#mount_program|mount_program|g' -e '/additionalimage.*/a "/var/lib/shared",' -e 's|^mountopt[[:space:]]*=.*$|mountopt = "nodev,fsync=0"|g' /etc/containers/storage.conf
 RUN mkdir -p /var/lib/shared/overlay-images /var/lib/shared/overlay-layers; touch /var/lib/shared/overlay-images/images.lock; touch /var/lib/shared/overlay-layers/layers.lock
 
 # Set an environment variable to default to chroot isolation for RUN

contrib/buildahimage/upstream/Dockerfile

@@ -46,7 +46,7 @@ RUN useradd build; yum -y update; yum -y reinstall shadow-utils; yum -y install
 ADD https://raw.githubusercontent.com/containers/buildah/master/contrib/buildahimage/stable/containers.conf /etc/containers/
 
 # Adjust storage.conf to enable Fuse storage.
-RUN sed -i -e 's|^#mount_program|mount_program|g' -e '/additionalimage.*/a "/var/lib/shared",' -e 's|^mountopt[[:space:]]*=.*$|mountopt = "nodev,fsync=0"|g' /etc/containers/storage.conf
+RUN chmod 644 /etc/containers/containers.conf; sed -i -e 's|^#mount_program|mount_program|g' -e '/additionalimage.*/a "/var/lib/shared",' -e 's|^mountopt[[:space:]]*=.*$|mountopt = "nodev,fsync=0"|g' /etc/containers/storage.conf
 RUN mkdir -p /var/lib/shared/overlay-images /var/lib/shared/overlay-layers; touch /var/lib/shared/overlay-images/images.lock; touch /var/lib/shared/overlay-layers/layers.lock
 
 # Set an environment variable to default to chroot isolation for RUN