May Orion build on CentOS 8?

[fgalan]

It would be a good idea to evaluate this, doing a pass-through of the building procedure at https://fiware-orion.readthedocs.io/en/master/admin/build_source/index.html and see how it goes.

[mapedraza]

I got Orion Context Broker running on CentOS-8.3.2011 using task/3132_driver_migration_first_stage branch using mongo-c-driver-1.16.0

Some comments about the installation:

• Installing scons fails. It is not needed anymore since it is needed only for mongo legacy driver
• It is needed to change CMakeLists.txt file to ignore some warnings while compiling
  • Used sed -i '87s/.*/set (CMAKE_CXX_FLAGS "-Wall -Wno-unknown-pragmas -D_LARGEFILE64_SOURCE -D_GNU_SOURCE -Werror -Wno-deprecated-declarations -fno-var-tracking-assignments -Wno-format-truncation -Wno-stringop-truncation -Wno-maybe-uninitialized")/' to replace the line

I attach a portion of dockerile (not tested yet as dockerfile) with the modifications needed

  adduser --comment "${ORION_USER}" ${ORION_USER} && \
   # Install dependencies
   yum -y install epel-release && \
   yum -y install \
     boost-devel \
     bzip2 \
     cmake \
     gnutls-devel \
     libgcrypt-devel \
     libcurl-devel \
     openssl-devel \
     libuuid-devel \
     make \
     nc \
     git \
     gcc-c++ \
#      scons \
     tar \
     which \
     cyrus-sasl-devel && \
   # Install libmicrohttpd from source
   cd /opt && \
   curl -kOL http://ftp.gnu.org/gnu/libmicrohttpd/libmicrohttpd-0.9.70.tar.gz && \
   tar xvf libmicrohttpd-0.9.70.tar.gz && \
   cd libmicrohttpd-0.9.70 && \
   ./configure --disable-messages --disable-postprocessor --disable-dauth && \
   make && \
   make install && \
   ldconfig && \
   # Install mongodb driver from source
   cd /opt && \
   wget https://github.com/mongodb/mongo-c-driver/releases/download/1.16.0/mongo-c-driver-1.16.0.tar.gz && \
   tar xfvz mongo-c-driver-1.16.0.tar.gz && \
   cd mongo-c-driver-1.16.0 && \
   mkdir cmake-build && \
   cd cmake-build && \
   cmake3 -DENABLE_AUTOMATIC_INIT_AND_CLEANUP=OFF ..   && \
   make && \
   sudo make install && \
   # Coppy generated dynamic libraries to make them available from Orion
   cd src && \
   cp libmongoc/libmongoc-1.0.so.0 /lib64/libmongoc-1.0.so.0 && \
   cp libbson/libbson-1.0.so.0 /lib64/libbson-1.0.so.0 && \
   # Install rapidjson from source
   cd /opt && \
   curl -kOL https://github.com/miloyip/rapidjson/archive/v1.1.0.tar.gz && \
   tar xfz v1.1.0.tar.gz && \
   mv rapidjson-1.1.0/include/rapidjson/ /usr/local/include && \
   # Install git (not used in dockerfile)
   yum -y install git
   # Install orion from source - replaced env variables
   cd /opt && \
   git clone https://github.com/telefonicaid/fiware-orion.git && \
   cd fiware-orion/ && \
   git checkout task/3132_driver_migration_first_stage && \
   sed -i '87s/.*/set (CMAKE_CXX_FLAGS "-Wall -Wno-unknown-pragmas -D_LARGEFILE64_SOURCE -D_GNU_SOURCE -Werror -Wno-deprecated-declarations -fno-var-tracking-assignments -Wno-format-truncation -Wno-stringop-truncation -Wno-maybe-uninitialized")/' CMakeLists.txt && \
   make && \
   make install && \

[fgalan]

Could you run the so built contextBroker (e.g. contextBroker -fg) and provide the result of curl localhost:1026/version to know the exact library version you get in CentOS 8? (It may be needed for documentation purposes)

[mapedraza]

Orion's response:

"orion" : {
  "version" : "2.5.0-next",
  "uptime" : "0 d, 0 h, 0 m, 21 s",
  "git_hash" : "4af8845493d3ba984493f489151f5a24595d7419",
  "compile_time" : "Tue Feb 16 06:28:12 EST 2021",
  "compiled_by" : "root",
  "compiled_in" : "localhost.localdomain",
  "release_date" : "Tue Feb 16 06:28:12 EST 2021",
  "doc" : "https://fiware-orion.rtfd.io/",
  "libversions": {
     "boost": "1_66",
     "libcurl": "libcurl/7.61.1 OpenSSL/1.1.1g zlib/1.2.11 brotli/1.0.6 libidn2/2.2.0 libpsl/0.20.2 (+libidn2/2.2.0) libssh/0.9.4/openssl/zlib nghttp2/1.33.0",
     "libmicrohttpd": "0.9.70",
     "openssl": "1.1",
     "rapidjson": "1.1.0",
     "mongodriver": "legacy-1.1.2"
  }
}
}

[fgalan]

PR #3790 (to be landed soon in PR #3622) has modified the building so now the Mongo C libraries are statically linked so this can be removed from the receipt above:

   # Coppy generated dynamic libraries to make them available from Orion
   cd src && \
   cp libmongoc/libmongoc-1.0.so.0 /lib64/libmongoc-1.0.so.0 && \
   cp libbson/libbson-1.0.so.0 /lib64/libbson-1.0.so.0 && \

[mapedraza]

gcc and cmake versions used to compile Orion Context Broker on Centos8

[root@localhost ~]# cmake --version
cmake version 3.11.4

CMake suite maintained and supported by Kitware (kitware.com/cmake).

[root@localhost ~]# cmake3 --version
cmake version 3.11.4

CMake suite maintained and supported by Kitware (kitware.com/cmake).

[root@localhost ~]# gcc --version
gcc (GCC) 8.3.1 20191121 (Red Hat 8.3.1-5)
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

[mapedraza]

Some snippets for legacy driver support

Installing scons

wget http://repo.okay.com.mx/centos/8/x86_64/release/scons-2.3.0-2.el8.noarch.rpm
yum localinstall scons-2.3.0-2.el8.noarch.rpm

Building mongo-cxx-driver lastest version (1.1.3)

   cd /opt && \
   curl -kOL https://github.com/mongodb/mongo-cxx-driver/archive/legacy-1.1.3.tar.gz && \
   tar xfz legacy-1.1.3.tar.gz && \
   cd mongo-cxx-driver-legacy-1.1.3 && \
# Apply patch to make driver compatible with OpenSSL 1.1.x
# https://github.com/mongodb/mongo-cxx-driver/pull/615
   wget https://patch-diff.githubusercontent.com/raw/mongodb/mongo-cxx-driver/pull/615.patch
   git apply 615.patch
# Modify SConstruct file to disable warnings
   sed -i '873s/.*/                         "-Winvalid-pch","-Wno-nonnull-compare","-Wno-format-truncation"] )/' SConstruct && \
   scons  --use-sasl-client --ssl

[fgalan]

Done in PR #3622