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[__letsencrypt_cert] Move hook contents generation out of manifest

While there address some minor issues in the comments in the hook contents.
__letsencrypt_cert-fix-hooks
evilham 1 year ago
parent
commit
aa80c09c80
  1. 84
      cdist/conf/type/__letsencrypt_cert/files/gen_hook.sh
  2. 78
      cdist/conf/type/__letsencrypt_cert/manifest

84
cdist/conf/type/__letsencrypt_cert/files/gen_hook.sh vendored

@ -0,0 +1,84 @@
#!/bin/sh -e
# It is expected that this defines hook_contents
# Reasonable defaults
hook_source="${__object}/parameter/${hook}-hook"
hook_state="absent"
hook_contents_head="#!/bin/sh -e"
hook_contents_logic=""
hook_contents_tail=""
# Backwards compatibility
# Remove this when renew-hook is removed
# Falling back to renew-hook if deploy-hook is not passed
if [ "${hook}" = "deploy" ] && [ ! -f "${hook_source}" ]; then
hook_source="${__object}/parameter/renew-hook"
fi
if [ "${state}" = "present" ] && \
[ -f "${hook_source}" ]; then
# This hook is to be installed, let's generate it with some
# safety boilerplate
# Since certbot runs all hooks for all renewal processes
# (at each state for deploy, pre, post), it is up to us to
# differentiate whether or not the hook must run
hook_state="present"
hook_contents_head="$(cat <<EOF
#!/bin/sh -e
#
# Managed remotely with https://cdi.st
#
# Domains for which this hook is supposed to apply
lineage="${LE_DIR}/live/${__object_id}"
domains="\$(cat <<eof
${domains}
eof
)"
EOF
)"
case "${hook}" in
pre|post)
# Certbot is kind of terrible, we have
# no way of knowing what domain/lineage the
# hook is running for
hook_contents_logic="$(cat <<EOF
# pre/post-hooks apply always due to a certbot limitation
APPLY_HOOK="YES"
EOF
)"
;;
deploy)
hook_contents_logic="$(cat <<EOF
# certbot defines these environment variables:
# RENEWED_DOMAINS="DOMAIN1 DOMAIN2"
# RENEWED_LINEAGE="/etc/letsencrypt/live/__object_id"
# It feels more stable to use RENEWED_LINEAGE
if [ "\${lineage}" = "\${RENEWED_LINEAGE}" ]; then
APPLY_HOOK="YES"
fi
EOF
)"
;;
*)
echo "Unknown hook '${hook}'" >> /dev/stderr
exit 1
;;
esac
hook_contents_tail="$(cat <<EOF
if [ -n "\${APPLY_HOOK}" ]; then
# Messing with indentation can eff up the users' scripts, let's not
$(cat "${hook_source}")
fi
EOF
)"
fi
hook_contents="$(cat <<EOF
${hook_contents_head}
${hook_contents_logic}
${hook_contents_tail}
EOF
)"

78
cdist/conf/type/__letsencrypt_cert/manifest vendored

@ -141,77 +141,11 @@ fi
for hook in deploy pre post; do
# Using something unique and specific to this object
hook_file="${HOOKS_DIR}/${hook}/${__object_id}.cdist.sh"
# Reasonable defaults
hook_source="${__object}/parameter/${hook}-hook"
hook_state="absent"
hook_contents_head="#!/bin/sh -e"
hook_contents_logic=""
hook_contents_tail=""
# Backwards compatibility
# Remove this when renew-hook is removed
# Falling back to renew-hook if deploy-hook is not passed
if [ "${hook}" = "deploy" ] && [ ! -f "${hook_source}" ]; then
hook_source="${__object}/parameter/renew-hook"
fi
if [ "${state}" = "present" ] && \
[ -f "${hook_source}" ]; then
# This hook is to be installed, let's generate it with some
# safety boilerplate
# Since certbot runs all hooks for all renewal processes
# (at each state for deploy, pre, post), it is up to us to
# differentiate whether or not the hook must run
hook_state="present"
hook_contents_head="$(cat <<EOF
#!/bin/sh -e
#
# Managed remotely with https://cdi.st
#
# Domains for which this hook is supposed to apply
lineage="${LE_DIR}/live/${__object_id}"
domains="\$(cat <<eof
${domains}
eof
)"
EOF
)"
case "${hook}" in
pre|post)
# Certbot is kind of terrible, we have
# no way of knowing what domain/lineage the
# hook is running for
hook_contents_logic="$(cat <<EOF
# pre/post-hooks apply always due to a certbot limitation
APPLY_HOOK="YES"
EOF
)"
;;
deploy)
hook_contents_logic="$(cat <<EOF
# certbot defines these:
# RENEWED_DOMAINS: DOMAIN1,DOMAIN2
# RENEWED_LINEAGE: /etc/letsencrypt/live/__object_id
# It feels more stable to use RENEWED_LINEAGE
if [ "\${lineage}" = "\${RENEWED_LINEAGE}" ]; then
APPLY_HOOK="YES"
fi
EOF
)"
;;
*)
echo "Unknown hook '${hook}'" >> /dev/stderr
exit 1
;;
esac
# This defines hook_contents
# shellcheck source=cdist/conf/type/__letsencrypt_cert/files/gen_hook.sh
. "${__type}/files/gen_hook.sh"
hook_contents_tail="$(cat <<EOF
if [ -n "\${APPLY_HOOK}" ]; then
# Messing with indentation can eff up the users' scripts, let's not
$(cat "${hook_source}")
fi
EOF
)"
fi
# Ensure hook directory exists
require="__directory/${HOOKS_DIR}" __directory "${HOOKS_DIR}/${hook}" \
--mode 0755
@ -219,10 +153,6 @@ EOF
--mode 0555 \
--source '-' \
--state "${hook_state}" <<EOF
${hook_contents_head}
${hook_contents_logic}
${hook_contents_tail}
${hook_contents}
EOF
done

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